RDO objects and C#

dskwarek · Joined: 08 Oct 2007 Posts: 2

I'm testing Outlook Redemption component (4.4.0.714) with C# project.

I have problem with creating of RDO instances.

I'm using Visual Studio 2005.
I added Redemption component to my project using
AddReference -> COM -> Redemption Outlook Library 4.4.

I tried to create instance of RDOContactItemClass.

RDOSessionClass session = new RDOSessionClass();
session.Logon("", "", false, false, null, false);
RDOFolder folder =
session.GetDefaultFolder(rdoDefaultFolders.olFolderContacts);
IRDOMail item = folder.Items.Add("IPM.Contact");

RDOContactItem contact = item as RDOContactItem; // NULL !!!

Method Items.Add returns instance which implements RDOMail interface.
I've found in Outlook Redemption documentation that RDOContactItem is
derived from the RDOMail object.

There isn't true for interop assembly created by Visual Studio.

RDOContactItem is interface and implements IRDOContactItem which
implements IRDOMail.

Visual Studio creates RDOContactItemClass which implements
RDOContactItem and IRDOContactItem.

There is no RDOMail in inheritance hierarchy of RDOContactItem.

How to add new instance of RDOContactItemClass to RDOItems collection
?

Using Items.Add method I can create only instance of RDOMailClass.

What am I doing wrong ?

Archived from group: microsoft>public>outlook>interop

Ken Slovak - [MVP - Outlo · Joined: 12 Aug 2007 Posts: 405

I've had no problems doing it this way:

RDOSession session = new RDOSession();
session.Logon("", "", false, false, null, false);

RDOFolder folder =
session.GetDefaultFolder(rdoDefaultFolders.olFolderContacts);

RDOMail item = folder.Items.Add("IPM.Contact");

RDOContactItem contact = (RDOContactItem)item;

More often I'd do it this way:

RDOContactItem contact =
(RDOContactItem)folder.Items.Add("IPM.Contact");

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm

wrote in message @v3g2000hsg.googlegroups.com...
> I'm testing Outlook Redemption component (4.4.0.714) with C# project.
>
> I have problem with creating of RDO instances.
>
> I'm using Visual Studio 2005.
> I added Redemption component to my project using
> AddReference -> COM -> Redemption Outlook Library 4.4.
>
> I tried to create instance of RDOContactItemClass.
>
> RDOSessionClass session = new RDOSessionClass();
> session.Logon("", "", false, false, null, false);
> RDOFolder folder =
> session.GetDefaultFolder(rdoDefaultFolders.olFolderContacts);
> IRDOMail item = folder.Items.Add("IPM.Contact");
>
> RDOContactItem contact = item as RDOContactItem; // NULL !!!
>
>
> Method Items.Add returns instance which implements RDOMail interface.
> I've found in Outlook Redemption documentation that RDOContactItem is
> derived from the RDOMail object.
>
> There isn't true for interop assembly created by Visual Studio.
>
> RDOContactItem is interface and implements IRDOContactItem which
> implements IRDOMail.
>
> Visual Studio creates RDOContactItemClass which implements
> RDOContactItem and IRDOContactItem.
>
>
> There is no RDOMail in inheritance hierarchy of RDOContactItem.
>
> How to add new instance of RDOContactItemClass to RDOItems collection
> ?
>
> Using Items.Add method I can create only instance of RDOMailClass.
>
> What am I doing wrong ?
>

dskwarek · Joined: 08 Oct 2007 Posts: 2

Thank you for response.

I've posted wrong example.
The cast which doesn't work is RDOContactItemClass contact = item as
RDOContactItemClass;
This line returns null, but RDOContactItem contact = item as
RDOContactItem works and your example also.

What is amazing that method Items.Add("IPM.Contacts") return instance
of RDOMailClass which
doesn't implement RDOContactItem.

I think when tlbimp.exe generates interop assembly
than overrides cast operators.
Maybe this is workaround for C++ multi-inheritance which is not
present in C#?

Ken Slovak - [MVP - Outlo · Joined: 12 Aug 2007 Posts: 405

I don't know. I've always generally used a RDOMail item instead of the class
version except where I need to add event handlers that aren't in the
non-class version. Offhand I don't recall if RDOMail has any of those but
the same applies to other various objects.

At least you now know of a method that does work.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm

wrote in message @o80g2000hse.googlegroups.com...
> Thank you for response.
>
> I've posted wrong example.
> The cast which doesn't work is RDOContactItemClass contact = item as
> RDOContactItemClass;
> This line returns null, but RDOContactItem contact = item as
> RDOContactItem works and your example also.
>
> What is amazing that method Items.Add("IPM.Contacts") return instance
> of RDOMailClass which
> doesn't implement RDOContactItem.
>
> I think when tlbimp.exe generates interop assembly
> than overrides cast operators.
> Maybe this is workaround for C++ multi-inheritance which is not
> present in C#?
>

Dmitry Streblechenko · Joined: 12 Aug 2007 Posts: 220

This is fairly standard and is not limited to Redemption at all.
Most COM objects do not support QueryInterface on the corresponding
CLASS_xyz GUID (since it is really an id and does not correspond to an
interface).
On the .Net level, avoid declaring and casting COM objects to the XYZClass
(e.g. RDOContactItemClass).

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

wrote in message @o80g2000hse.googlegroups.com...
> Thank you for response.
>
> I've posted wrong example.
> The cast which doesn't work is RDOContactItemClass contact = item as
> RDOContactItemClass;
> This line returns null, but RDOContactItem contact = item as
> RDOContactItem works and your example also.
>
> What is amazing that method Items.Add("IPM.Contacts") return instance
> of RDOMailClass which
> doesn't implement RDOContactItem.
>
> I think when tlbimp.exe generates interop assembly
> than overrides cast operators.
> Maybe this is workaround for C++ multi-inheritance which is not
> present in C#?
>

AK · Joined: 12 Aug 2007 Posts: 9

Hi,

I'm also getting the same kind of exception as below.

"Unable to cast COM object of type 'System.__ComObject' to interface type
'Redemption.RDOContactItem'. This operation failed because the QueryInterface
call on the COM component for the interface with IID
'{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following error:
No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE))."

I'm very new to the Redemption and it's object model.

What I'm trying to do is as follows.

"To retrieve all mailbox accounts from the domain (example xyz.com), once
retrieved a configurable number of worker threads will be spawned. Each
worker thread will take a single mailbox account and query Active Directory
to see which Exchange Server the mailbox account resides on. The worker
thread will then trawl through each message in its given mailbox’s account
checking its Read, Received Date and the Mileage properties. If the mail
message meets the given criteria (mail item has been read, is older than x
months etc) the email item will be logged and if in the correct mode deleted.
Once a mailbox has been fully processes it will go on for next mailbox".

I've few queries as below.

1. How to retrieve all mailbox accounts from the domain (e.g. xyz.com)?
2. Can you please let me know what objects in Redemption object model will
be helpful for this?
3. Do I have to use ProfMan library?

Please help me. As mentioned I'm very new to Redemption or for that matter
exchange or outlook programming.

Many Thanks in advance.
Amit Kathane

"Dmitry Streblechenko" wrote:

> This is fairly standard and is not limited to Redemption at all.
> Most COM objects do not support QueryInterface on the corresponding
> CLASS_xyz GUID (since it is really an id and does not correspond to an
> interface).
> On the .Net level, avoid declaring and casting COM objects to the XYZClass
> (e.g. RDOContactItemClass).
>
> Dmitry Streblechenko (MVP)
> http://www.dimastr.com/
> OutlookSpy - Outlook, CDO
> and MAPI Developer Tool
>
> wrote in message
> @o80g2000hse.googlegroups.com...
> > Thank you for response.
> >
> > I've posted wrong example.
> > The cast which doesn't work is RDOContactItemClass contact = item as
> > RDOContactItemClass;
> > This line returns null, but RDOContactItem contact = item as
> > RDOContactItem works and your example also.
> >
> > What is amazing that method Items.Add("IPM.Contacts") return instance
> > of RDOMailClass which
> > doesn't implement RDOContactItem.
> >
> > I think when tlbimp.exe generates interop assembly
> > than overrides cast operators.
> > Maybe this is workaround for C++ multi-inheritance which is not
> > present in C#?
> >
>
>
>

Dmitry Streblechenko · Joined: 12 Aug 2007 Posts: 220

Where does the item come from and why are you querying it for
RDOContactItem? Does it come from the Contacts folder? Most likely you
encounter a Distribution list, which is represented by the RDODistListItem
object.

As for what you are actually trying to do, the standard way to do things
like that is to

1. Run your code under the Windows user identity who can access all of the
required mailboxes
2. Call RDOSession.Logon if you have an existing profilee pointing to that
user's mailbox or call RDOSession.LogonExchangeMailbox
3. Loop through the entries in the RDOSession.AddressBook.GAL;
4. For each RDOAddressEntry with DisplayType property equal to DT_MAILUSER
(= 0)
5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object (get
back RDOExchangeMailboxStore)
6. Loop through all subfolder and messages in tha tmailbox store stating
with the RDOStore.IPMRootFolder collection

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"AK" wrote in message @microsoft.com...
> Hi,
>
> I'm also getting the same kind of exception as below.
>
> "Unable to cast COM object of type 'System.__ComObject' to interface type
> 'Redemption.RDOContactItem'. This operation failed because the
> QueryInterface
> call on the COM component for the interface with IID
> '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following
> error:
> No such interface supported (Exception from HRESULT: 0x80004002
> (E_NOINTERFACE))."
>
> I'm very new to the Redemption and it's object model.
>
> What I'm trying to do is as follows.
>
> "To retrieve all mailbox accounts from the domain (example xyz.com), once
> retrieved a configurable number of worker threads will be spawned. Each
> worker thread will take a single mailbox account and query Active
> Directory
> to see which Exchange Server the mailbox account resides on. The worker
> thread will then trawl through each message in its given mailbox's
> account
> checking its Read, Received Date and the Mileage properties. If the mail
> message meets the given criteria (mail item has been read, is older than x
> months etc) the email item will be logged and if in the correct mode
> deleted.
> Once a mailbox has been fully processes it will go on for next mailbox".
>
> I've few queries as below.
>
> 1. How to retrieve all mailbox accounts from the domain (e.g. xyz.com)?
> 2. Can you please let me know what objects in Redemption object model will
> be helpful for this?
> 3. Do I have to use ProfMan library?
>
> Please help me. As mentioned I'm very new to Redemption or for that matter
> exchange or outlook programming.
>
> Many Thanks in advance.
> Amit Kathane
>
>
>
> "Dmitry Streblechenko" wrote:
>
>> This is fairly standard and is not limited to Redemption at all.
>> Most COM objects do not support QueryInterface on the corresponding
>> CLASS_xyz GUID (since it is really an id and does not correspond to an
>> interface).
>> On the .Net level, avoid declaring and casting COM objects to the
>> XYZClass
>> (e.g. RDOContactItemClass).
>>
>> Dmitry Streblechenko (MVP)
>> http://www.dimastr.com/
>> OutlookSpy - Outlook, CDO
>> and MAPI Developer Tool
>>
>> wrote in message
>> @o80g2000hse.googlegroups.com...
>> > Thank you for response.
>> >
>> > I've posted wrong example.
>> > The cast which doesn't work is RDOContactItemClass contact = item as
>> > RDOContactItemClass;
>> > This line returns null, but RDOContactItem contact = item as
>> > RDOContactItem works and your example also.
>> >
>> > What is amazing that method Items.Add("IPM.Contacts") return instance
>> > of RDOMailClass which
>> > doesn't implement RDOContactItem.
>> >
>> > I think when tlbimp.exe generates interop assembly
>> > than overrides cast operators.
>> > Maybe this is workaround for C++ multi-inheritance which is not
>> > present in C#?
>> >
>>
>>
>>

AK · Joined: 12 Aug 2007 Posts: 9

Hi,

Thanks you very much for your reply.

I'm understanding bit of Redemeption library now.

One issue is when I'm trying to do login using
RDOSession.LogonExchangeMailbox

it's popping up the UI.

According to my requirement, I've to traverse through all mailbox which I
guess will require login into each mailbox and a pop up UI could be an issue?

This UI does not come when using RDOSession.Logon method, is there anything
I'm missing while using RDOSession.LogonExchangeMailbox or is there any
workaround to my requirement.

Also what exctly is the usage of ProfMan library? Is it only needed when we
don't have a user profile to logon so that one can create a new profile?

Once again many thanks for your help.

"Dmitry Streblechenko" wrote:

> Where does the item come from and why are you querying it for
> RDOContactItem? Does it come from the Contacts folder? Most likely you
> encounter a Distribution list, which is represented by the RDODistListItem
> object.
>
> As for what you are actually trying to do, the standard way to do things
> like that is to
>
> 1. Run your code under the Windows user identity who can access all of the
> required mailboxes
> 2. Call RDOSession.Logon if you have an existing profilee pointing to that
> user's mailbox or call RDOSession.LogonExchangeMailbox
> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
> 4. For each RDOAddressEntry with DisplayType property equal to DT_MAILUSER
> (= 0)
> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object (get
> back RDOExchangeMailboxStore)
> 6. Loop through all subfolder and messages in tha tmailbox store stating
> with the RDOStore.IPMRootFolder collection
>
> Dmitry Streblechenko (MVP)
> http://www.dimastr.com/
> OutlookSpy - Outlook, CDO
> and MAPI Developer Tool
>
> Dmitry Streblechenko (MVP)
> http://www.dimastr.com/
> OutlookSpy - Outlook, CDO
> and MAPI Developer Tool
>
> "AK" wrote in message
> @microsoft.com...
> > Hi,
> >
> > I'm also getting the same kind of exception as below.
> >
> > "Unable to cast COM object of type 'System.__ComObject' to interface type
> > 'Redemption.RDOContactItem'. This operation failed because the
> > QueryInterface
> > call on the COM component for the interface with IID
> > '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following
> > error:
> > No such interface supported (Exception from HRESULT: 0x80004002
> > (E_NOINTERFACE))."
> >
> > I'm very new to the Redemption and it's object model.
> >
> > What I'm trying to do is as follows.
> >
> > "To retrieve all mailbox accounts from the domain (example xyz.com), once
> > retrieved a configurable number of worker threads will be spawned. Each
> > worker thread will take a single mailbox account and query Active
> > Directory
> > to see which Exchange Server the mailbox account resides on. The worker
> > thread will then trawl through each message in its given mailbox's
> > account
> > checking its Read, Received Date and the Mileage properties. If the mail
> > message meets the given criteria (mail item has been read, is older than x
> > months etc) the email item will be logged and if in the correct mode
> > deleted.
> > Once a mailbox has been fully processes it will go on for next mailbox".
> >
> > I've few queries as below.
> >
> > 1. How to retrieve all mailbox accounts from the domain (e.g. xyz.com)?
> > 2. Can you please let me know what objects in Redemption object model will
> > be helpful for this?
> > 3. Do I have to use ProfMan library?
> >
> > Please help me. As mentioned I'm very new to Redemption or for that matter
> > exchange or outlook programming.
> >
> > Many Thanks in advance.
> > Amit Kathane
> >
> >
> >
> > "Dmitry Streblechenko" wrote:
> >
> >> This is fairly standard and is not limited to Redemption at all.
> >> Most COM objects do not support QueryInterface on the corresponding
> >> CLASS_xyz GUID (since it is really an id and does not correspond to an
> >> interface).
> >> On the .Net level, avoid declaring and casting COM objects to the
> >> XYZClass
> >> (e.g. RDOContactItemClass).
> >>
> >> Dmitry Streblechenko (MVP)
> >> http://www.dimastr.com/
> >> OutlookSpy - Outlook, CDO
> >> and MAPI Developer Tool
> >>
> >> wrote in message
> >> @o80g2000hse.googlegroups.com...
> >> > Thank you for response.
> >> >
> >> > I've posted wrong example.
> >> > The cast which doesn't work is RDOContactItemClass contact = item as
> >> > RDOContactItemClass;
> >> > This line returns null, but RDOContactItem contact = item as
> >> > RDOContactItem works and your example also.
> >> >
> >> > What is amazing that method Items.Add("IPM.Contacts") return instance
> >> > of RDOMailClass which
> >> > doesn't implement RDOContactItem.
> >> >
> >> > I think when tlbimp.exe generates interop assembly
> >> > than overrides cast operators.
> >> > Maybe this is workaround for C++ multi-inheritance which is not
> >> > present in C#?
> >> >
> >>
> >>
> >>
>
>
>

Dmitry Streblechenko · Joined: 12 Aug 2007 Posts: 220

Once again, see steps 1 and 2. You need to call LogonExchangeMailbox *once*
for the current Windows user who must have the right to access othe
rmailboxes.
To access other mailboxess call RDOSession.GetSharedMailbox. Do *not* call
LogonExchangeMailbox for the other mailboxes.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"AK" wrote in message @microsoft.com...
> Hi,
>
> Thanks you very much for your reply.
>
> I'm understanding bit of Redemeption library now.
>
> One issue is when I'm trying to do login using
> RDOSession.LogonExchangeMailbox
>
> it's popping up the UI.
>
> According to my requirement, I've to traverse through all mailbox which I
> guess will require login into each mailbox and a pop up UI could be an
> issue?
>
> This UI does not come when using RDOSession.Logon method, is there
> anything
> I'm missing while using RDOSession.LogonExchangeMailbox or is there any
> workaround to my requirement.
>
> Also what exctly is the usage of ProfMan library? Is it only needed when
> we
> don't have a user profile to logon so that one can create a new profile?
>
> Once again many thanks for your help.
>
>
>
>
> "Dmitry Streblechenko" wrote:
>
>> Where does the item come from and why are you querying it for
>> RDOContactItem? Does it come from the Contacts folder? Most likely you
>> encounter a Distribution list, which is represented by the
>> RDODistListItem
>> object.
>>
>> As for what you are actually trying to do, the standard way to do things
>> like that is to
>>
>> 1. Run your code under the Windows user identity who can access all of
>> the
>> required mailboxes
>> 2. Call RDOSession.Logon if you have an existing profilee pointing to
>> that
>> user's mailbox or call RDOSession.LogonExchangeMailbox
>> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
>> 4. For each RDOAddressEntry with DisplayType property equal to
>> DT_MAILUSER
>> (= 0)
>> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object
>> (get
>> back RDOExchangeMailboxStore)
>> 6. Loop through all subfolder and messages in tha tmailbox store stating
>> with the RDOStore.IPMRootFolder collection
>>
>> Dmitry Streblechenko (MVP)
>> http://www.dimastr.com/
>> OutlookSpy - Outlook, CDO
>> and MAPI Developer Tool
>>
>> Dmitry Streblechenko (MVP)
>> http://www.dimastr.com/
>> OutlookSpy - Outlook, CDO
>> and MAPI Developer Tool
>>
>> "AK" wrote in message
>> @microsoft.com...
>> > Hi,
>> >
>> > I'm also getting the same kind of exception as below.
>> >
>> > "Unable to cast COM object of type 'System.__ComObject' to interface
>> > type
>> > 'Redemption.RDOContactItem'. This operation failed because the
>> > QueryInterface
>> > call on the COM component for the interface with IID
>> > '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following
>> > error:
>> > No such interface supported (Exception from HRESULT: 0x80004002
>> > (E_NOINTERFACE))."
>> >
>> > I'm very new to the Redemption and it's object model.
>> >
>> > What I'm trying to do is as follows.
>> >
>> > "To retrieve all mailbox accounts from the domain (example xyz.com),
>> > once
>> > retrieved a configurable number of worker threads will be spawned.
>> > Each
>> > worker thread will take a single mailbox account and query Active
>> > Directory
>> > to see which Exchange Server the mailbox account resides on. The
>> > worker
>> > thread will then trawl through each message in its given mailbox's
>> > account
>> > checking its Read, Received Date and the Mileage properties. If the
>> > mail
>> > message meets the given criteria (mail item has been read, is older
>> > than x
>> > months etc) the email item will be logged and if in the correct mode
>> > deleted.
>> > Once a mailbox has been fully processes it will go on for next
>> > mailbox".
>> >
>> > I've few queries as below.
>> >
>> > 1. How to retrieve all mailbox accounts from the domain (e.g. xyz.com)?
>> > 2. Can you please let me know what objects in Redemption object model
>> > will
>> > be helpful for this?
>> > 3. Do I have to use ProfMan library?
>> >
>> > Please help me. As mentioned I'm very new to Redemption or for that
>> > matter
>> > exchange or outlook programming.
>> >
>> > Many Thanks in advance.
>> > Amit Kathane
>> >
>> >
>> >
>> > "Dmitry Streblechenko" wrote:
>> >
>> >> This is fairly standard and is not limited to Redemption at all.
>> >> Most COM objects do not support QueryInterface on the corresponding
>> >> CLASS_xyz GUID (since it is really an id and does not correspond to an
>> >> interface).
>> >> On the .Net level, avoid declaring and casting COM objects to the
>> >> XYZClass
>> >> (e.g. RDOContactItemClass).
>> >>
>> >> Dmitry Streblechenko (MVP)
>> >> http://www.dimastr.com/
>> >> OutlookSpy - Outlook, CDO
>> >> and MAPI Developer Tool
>> >>
>> >> wrote in message
>> >> @o80g2000hse.googlegroups.com...
>> >> > Thank you for response.
>> >> >
>> >> > I've posted wrong example.
>> >> > The cast which doesn't work is RDOContactItemClass contact = item as
>> >> > RDOContactItemClass;
>> >> > This line returns null, but RDOContactItem contact = item as
>> >> > RDOContactItem works and your example also.
>> >> >
>> >> > What is amazing that method Items.Add("IPM.Contacts") return
>> >> > instance
>> >> > of RDOMailClass which
>> >> > doesn't implement RDOContactItem.
>> >> >
>> >> > I think when tlbimp.exe generates interop assembly
>> >> > than overrides cast operators.
>> >> > Maybe this is workaround for C++ multi-inheritance which is not
>> >> > present in C#?
>> >> >
>> >>
>> >>
>> >>
>>
>>
>>

AK · Joined: 12 Aug 2007 Posts: 9

Hello Dmitry,

Thank you very much for your reply.

According to your solution mentioned in one of the above responses i.e.

1. Run your code under the Windows user identity who can access all of the
required mailboxes
2. Call RDOSession.Logon if you have an existing profilee pointing to that
user's mailbox or call RDOSession.LogonExchangeMailbox
3. Loop through the entries in the RDOSession.AddressBook.GAL;
4. For each RDOAddressEntry with DisplayType property equal to DT_MAILUSER
(= 0)
5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object (get
back RDOExchangeMailboxStore)
6. Loop through all subfolder and messages in tha tmailbox store stating
with the RDOStore.IPMRootFolder collection

Will there be problem in step 3 and 4 if there is a multiple exchange server
box in the domain and various users are configured with different exchange
box. Will I still be able to get all user's RDOAddressEntry object in
RDOSession.AddressBook.GAL or will it give only those users which are on the
same exchange box as of the Windows user under which the application is
running?

Also I assume that RDOSession.Logon using the existing profile of using
RDOSession.LogonExchangeMailbox are exclusive. I guess I don't have to create
the profile if it's not there and can use the RDOSession.LogonExchangeMailbox
method instead. Is that right?

Many Thanks for your help.
Amit Kathane

"Dmitry Streblechenko" wrote:

> Once again, see steps 1 and 2. You need to call LogonExchangeMailbox *once*
> for the current Windows user who must have the right to access othe
> rmailboxes.
> To access other mailboxess call RDOSession.GetSharedMailbox. Do *not* call
> LogonExchangeMailbox for the other mailboxes.
>
> Dmitry Streblechenko (MVP)
> http://www.dimastr.com/
> OutlookSpy - Outlook, CDO
> and MAPI Developer Tool
>
> "AK" wrote in message
> @microsoft.com...
> > Hi,
> >
> > Thanks you very much for your reply.
> >
> > I'm understanding bit of Redemeption library now.
> >
> > One issue is when I'm trying to do login using
> > RDOSession.LogonExchangeMailbox
> >
> > it's popping up the UI.
> >
> > According to my requirement, I've to traverse through all mailbox which I
> > guess will require login into each mailbox and a pop up UI could be an
> > issue?
> >
> > This UI does not come when using RDOSession.Logon method, is there
> > anything
> > I'm missing while using RDOSession.LogonExchangeMailbox or is there any
> > workaround to my requirement.
> >
> > Also what exctly is the usage of ProfMan library? Is it only needed when
> > we
> > don't have a user profile to logon so that one can create a new profile?
> >
> > Once again many thanks for your help.
> >
> >
> >
> >
> > "Dmitry Streblechenko" wrote:
> >
> >> Where does the item come from and why are you querying it for
> >> RDOContactItem? Does it come from the Contacts folder? Most likely you
> >> encounter a Distribution list, which is represented by the
> >> RDODistListItem
> >> object.
> >>
> >> As for what you are actually trying to do, the standard way to do things
> >> like that is to
> >>
> >> 1. Run your code under the Windows user identity who can access all of
> >> the
> >> required mailboxes
> >> 2. Call RDOSession.Logon if you have an existing profilee pointing to
> >> that
> >> user's mailbox or call RDOSession.LogonExchangeMailbox
> >> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
> >> 4. For each RDOAddressEntry with DisplayType property equal to
> >> DT_MAILUSER
> >> (= 0)
> >> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object
> >> (get
> >> back RDOExchangeMailboxStore)
> >> 6. Loop through all subfolder and messages in tha tmailbox store stating
> >> with the RDOStore.IPMRootFolder collection
> >>
> >> Dmitry Streblechenko (MVP)
> >> http://www.dimastr.com/
> >> OutlookSpy - Outlook, CDO
> >> and MAPI Developer Tool
> >>
> >> Dmitry Streblechenko (MVP)
> >> http://www.dimastr.com/
> >> OutlookSpy - Outlook, CDO
> >> and MAPI Developer Tool
> >>
> >> "AK" wrote in message
> >> @microsoft.com...
> >> > Hi,
> >> >
> >> > I'm also getting the same kind of exception as below.
> >> >
> >> > "Unable to cast COM object of type 'System.__ComObject' to interface
> >> > type
> >> > 'Redemption.RDOContactItem'. This operation failed because the
> >> > QueryInterface
> >> > call on the COM component for the interface with IID
> >> > '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following
> >> > error:
> >> > No such interface supported (Exception from HRESULT: 0x80004002
> >> > (E_NOINTERFACE))."
> >> >
> >> > I'm very new to the Redemption and it's object model.
> >> >
> >> > What I'm trying to do is as follows.
> >> >
> >> > "To retrieve all mailbox accounts from the domain (example xyz.com),
> >> > once
> >> > retrieved a configurable number of worker threads will be spawned.
> >> > Each
> >> > worker thread will take a single mailbox account and query Active
> >> > Directory
> >> > to see which Exchange Server the mailbox account resides on. The
> >> > worker
> >> > thread will then trawl through each message in its given mailbox's
> >> > account
> >> > checking its Read, Received Date and the Mileage properties. If the
> >> > mail
> >> > message meets the given criteria (mail item has been read, is older
> >> > than x
> >> > months etc) the email item will be logged and if in the correct mode
> >> > deleted.
> >> > Once a mailbox has been fully processes it will go on for next
> >> > mailbox".
> >> >
> >> > I've few queries as below.
> >> >
> >> > 1. How to retrieve all mailbox accounts from the domain (e.g. xyz.com)?
> >> > 2. Can you please let me know what objects in Redemption object model
> >> > will
> >> > be helpful for this?
> >> > 3. Do I have to use ProfMan library?
> >> >
> >> > Please help me. As mentioned I'm very new to Redemption or for that
> >> > matter
> >> > exchange or outlook programming.
> >> >
> >> > Many Thanks in advance.
> >> > Amit Kathane
> >> >
> >> >
> >> >
> >> > "Dmitry Streblechenko" wrote:
> >> >
> >> >> This is fairly standard and is not limited to Redemption at all.
> >> >> Most COM objects do not support QueryInterface on the corresponding
> >> >> CLASS_xyz GUID (since it is really an id and does not correspond to an
> >> >> interface).
> >> >> On the .Net level, avoid declaring and casting COM objects to the
> >> >> XYZClass
> >> >> (e.g. RDOContactItemClass).
> >> >>
> >> >> Dmitry Streblechenko (MVP)
> >> >> http://www.dimastr.com/
> >> >> OutlookSpy - Outlook, CDO
> >> >> and MAPI Developer Tool
> >> >>
> >> >> wrote in message
> >> >> @o80g2000hse.googlegroups.com...
> >> >> > Thank you for response.
> >> >> >
> >> >> > I've posted wrong example.
> >> >> > The cast which doesn't work is RDOContactItemClass contact = item as
> >> >> > RDOContactItemClass;
> >> >> > This line returns null, but RDOContactItem contact = item as
> >> >> > RDOContactItem works and your example also.
> >> >> >
> >> >> > What is amazing that method Items.Add("IPM.Contacts") return
> >> >> > instance
> >> >> > of RDOMailClass which
> >> >> > doesn't implement RDOContactItem.
> >> >> >
> >> >> > I think when tlbimp.exe generates interop assembly
> >> >> > than overrides cast operators.
> >> >> > Maybe this is workaround for C++ multi-inheritance which is not
> >> >> > present in C#?
> >> >> >
> >> >>
> >> >>
> >> >>
> >>
> >>
> >>
>
>
>

Dmitry Streblechenko · Joined: 12 Aug 2007 Posts: 220

1. Exchange transparently manages the locatiton of the mailboxes. It will
list all mailboxes in the organization. As an extra check, you might want to
read the PR_EMS_AB_HOME_MDB property using RDOAddressEntry.Fields[] (the
property returns the name of the server where teh user has a mailbox) -
there can be entries that have no mailboxes.
2. Yes, use either (but not both) Logon or LogonExchangeMailbox. Or set the
MAPIOBJECT property if you already have a running instance of Outlook (use
Namespace.MAPIOBJECT) or CDO 1.21 session (Session.MAPIOBJECT).

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"AK" wrote in message @microsoft.com...
> Hello Dmitry,
>
> Thank you very much for your reply.
>
> According to your solution mentioned in one of the above responses i.e.
>
> 1. Run your code under the Windows user identity who can access all of the
> required mailboxes
> 2. Call RDOSession.Logon if you have an existing profilee pointing to that
> user's mailbox or call RDOSession.LogonExchangeMailbox
> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
> 4. For each RDOAddressEntry with DisplayType property equal to DT_MAILUSER
> (= 0)
> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object
> (get
> back RDOExchangeMailboxStore)
> 6. Loop through all subfolder and messages in tha tmailbox store stating
> with the RDOStore.IPMRootFolder collection
>
> Will there be problem in step 3 and 4 if there is a multiple exchange
> server
> box in the domain and various users are configured with different exchange
> box. Will I still be able to get all user's RDOAddressEntry object in
> RDOSession.AddressBook.GAL or will it give only those users which are on
> the
> same exchange box as of the Windows user under which the application is
> running?
>
> Also I assume that RDOSession.Logon using the existing profile of using
> RDOSession.LogonExchangeMailbox are exclusive. I guess I don't have to
> create
> the profile if it's not there and can use the
> RDOSession.LogonExchangeMailbox
> method instead. Is that right?
>
> Many Thanks for your help.
> Amit Kathane
>
> "Dmitry Streblechenko" wrote:
>
>> Once again, see steps 1 and 2. You need to call LogonExchangeMailbox
>> *once*
>> for the current Windows user who must have the right to access othe
>> rmailboxes.
>> To access other mailboxess call RDOSession.GetSharedMailbox. Do *not*
>> call
>> LogonExchangeMailbox for the other mailboxes.
>>
>> Dmitry Streblechenko (MVP)
>> http://www.dimastr.com/
>> OutlookSpy - Outlook, CDO
>> and MAPI Developer Tool
>>
>> "AK" wrote in message
>> @microsoft.com...
>> > Hi,
>> >
>> > Thanks you very much for your reply.
>> >
>> > I'm understanding bit of Redemeption library now.
>> >
>> > One issue is when I'm trying to do login using
>> > RDOSession.LogonExchangeMailbox
>> >
>> > it's popping up the UI.
>> >
>> > According to my requirement, I've to traverse through all mailbox which
>> > I
>> > guess will require login into each mailbox and a pop up UI could be an
>> > issue?
>> >
>> > This UI does not come when using RDOSession.Logon method, is there
>> > anything
>> > I'm missing while using RDOSession.LogonExchangeMailbox or is there any
>> > workaround to my requirement.
>> >
>> > Also what exctly is the usage of ProfMan library? Is it only needed
>> > when
>> > we
>> > don't have a user profile to logon so that one can create a new
>> > profile?
>> >
>> > Once again many thanks for your help.
>> >
>> >
>> >
>> >
>> > "Dmitry Streblechenko" wrote:
>> >
>> >> Where does the item come from and why are you querying it for
>> >> RDOContactItem? Does it come from the Contacts folder? Most likely you
>> >> encounter a Distribution list, which is represented by the
>> >> RDODistListItem
>> >> object.
>> >>
>> >> As for what you are actually trying to do, the standard way to do
>> >> things
>> >> like that is to
>> >>
>> >> 1. Run your code under the Windows user identity who can access all of
>> >> the
>> >> required mailboxes
>> >> 2. Call RDOSession.Logon if you have an existing profilee pointing to
>> >> that
>> >> user's mailbox or call RDOSession.LogonExchangeMailbox
>> >> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
>> >> 4. For each RDOAddressEntry with DisplayType property equal to
>> >> DT_MAILUSER
>> >> (= 0)
>> >> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry
>> >> object
>> >> (get
>> >> back RDOExchangeMailboxStore)
>> >> 6. Loop through all subfolder and messages in tha tmailbox store
>> >> stating
>> >> with the RDOStore.IPMRootFolder collection
>> >>
>> >> Dmitry Streblechenko (MVP)
>> >> http://www.dimastr.com/
>> >> OutlookSpy - Outlook, CDO
>> >> and MAPI Developer Tool
>> >>
>> >> Dmitry Streblechenko (MVP)
>> >> http://www.dimastr.com/
>> >> OutlookSpy - Outlook, CDO
>> >> and MAPI Developer Tool
>> >>
>> >> "AK" wrote in message
>> >> @microsoft.com...
>> >> > Hi,
>> >> >
>> >> > I'm also getting the same kind of exception as below.
>> >> >
>> >> > "Unable to cast COM object of type 'System.__ComObject' to interface
>> >> > type
>> >> > 'Redemption.RDOContactItem'. This operation failed because the
>> >> > QueryInterface
>> >> > call on the COM component for the interface with IID
>> >> > '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following
>> >> > error:
>> >> > No such interface supported (Exception from HRESULT: 0x80004002
>> >> > (E_NOINTERFACE))."
>> >> >
>> >> > I'm very new to the Redemption and it's object model.
>> >> >
>> >> > What I'm trying to do is as follows.
>> >> >
>> >> > "To retrieve all mailbox accounts from the domain (example xyz.com),
>> >> > once
>> >> > retrieved a configurable number of worker threads will be spawned.
>> >> > Each
>> >> > worker thread will take a single mailbox account and query Active
>> >> > Directory
>> >> > to see which Exchange Server the mailbox account resides on. The
>> >> > worker
>> >> > thread will then trawl through each message in its given mailbox's
>> >> > account
>> >> > checking its Read, Received Date and the Mileage properties. If the
>> >> > mail
>> >> > message meets the given criteria (mail item has been read, is older
>> >> > than x
>> >> > months etc) the email item will be logged and if in the correct mode
>> >> > deleted.
>> >> > Once a mailbox has been fully processes it will go on for next
>> >> > mailbox".
>> >> >
>> >> > I've few queries as below.
>> >> >
>> >> > 1. How to retrieve all mailbox accounts from the domain (e.g.
>> >> > xyz.com)?
>> >> > 2. Can you please let me know what objects in Redemption object
>> >> > model
>> >> > will
>> >> > be helpful for this?
>> >> > 3. Do I have to use ProfMan library?
>> >> >
>> >> > Please help me. As mentioned I'm very new to Redemption or for that
>> >> > matter
>> >> > exchange or outlook programming.
>> >> >
>> >> > Many Thanks in advance.
>> >> > Amit Kathane
>> >> >
>> >> >
>> >> >
>> >> > "Dmitry Streblechenko" wrote:
>> >> >
>> >> >> This is fairly standard and is not limited to Redemption at all.
>> >> >> Most COM objects do not support QueryInterface on the corresponding
>> >> >> CLASS_xyz GUID (since it is really an id and does not correspond to
>> >> >> an
>> >> >> interface).
>> >> >> On the .Net level, avoid declaring and casting COM objects to the
>> >> >> XYZClass
>> >> >> (e.g. RDOContactItemClass).
>> >> >>
>> >> >> Dmitry Streblechenko (MVP)
>> >> >> http://www.dimastr.com/
>> >> >> OutlookSpy - Outlook, CDO
>> >> >> and MAPI Developer Tool
>> >> >>
>> >> >> wrote in message
>> >> >> @o80g2000hse.googlegroups.com...
>> >> >> > Thank you for response.
>> >> >> >
>> >> >> > I've posted wrong example.
>> >> >> > The cast which doesn't work is RDOContactItemClass contact = item
>> >> >> > as
>> >> >> > RDOContactItemClass;
>> >> >> > This line returns null, but RDOContactItem contact = item as
>> >> >> > RDOContactItem works and your example also.
>> >> >> >
>> >> >> > What is amazing that method Items.Add("IPM.Contacts") return
>> >> >> > instance
>> >> >> > of RDOMailClass which
>> >> >> > doesn't implement RDOContactItem.
>> >> >> >
>> >> >> > I think when tlbimp.exe generates interop assembly
>> >> >> > than overrides cast operators.
>> >> >> > Maybe this is workaround for C++ multi-inheritance which is not
>> >> >> > present in C#?
>> >> >> >
>> >> >>
>> >> >>
>> >> >>
>> >>
>> >>
>> >>
>>
>>
>>

AK · Joined: 12 Aug 2007 Posts: 9

Hello Dmitry,

Thank you very much for your assistance.

I'm getting following error randomly.

"Error in IMAPIFolder.GetContentsTable: MAPI_E_CALL_FAILED"

Please find below my code

======================================
private static void ProcessUserMailbox(string userName)
{
RDOSession rdoSession = new RDOSessionClass();
try
{
// get the admin user name from the configuration file
string systemUserName = Properties.Settings.Default.userName;
string exchangeSrvrName =
Properties.Settings.Default.UserMailboxServer;

if (string.IsNullOrEmpty(systemUserName))
systemUserName =
WindowsIdentity.GetCurrent().Name.ToString();

rdoSession.LogonExchangeMailbox(systemUserName,
exchangeSrvrName);
IRDOFolder rootFolder =
rdoSession.GetSharedMailbox(userName).RootFolder;

// iterate through all folders and subfolders
RDOFolders rdoFolders = rootFolder.Folders;
if (rdoFolders != null)
{
RDOFolder rdoFolder = rdoFolders.GetFirst();
if (rdoFolder != null)
{
// iterate folder list
for (int i = 0; i < rdoFolders.Count; i++)
{
// process the individual folder to search for
emails that can be deleted
ProcessFolder(userName, rootFolder.Name + " > ",
rdoFolder);
rdoFolder = rdoFolders.GetNext();
}
}
}
// release the COM object for the root folder.

System.Runtime.InteropServices.Marshal.ReleaseComObject(rootFolder);
rootFolder = null;
}
catch (Exception ex)
{
StringBuilder strInfo = new
StringBuilder(string.Format("{0}, Failed to process mailbox for user : {0}",
userName));
Util.LogMessage(strInfo.ToString());
Util.LogException(ex);
strInfo.AppendFormat(ex.Message + Environment.NewLine +
Util.GetInnerException(ex));
throw new ApplicationException(strInfo.ToString());
}
finally
{
rdoSession.Logoff();

System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoSession);
rdoSession = null;
GC.Collect();
}
}

private static void ProcessFolder(string userName, string
folderPath, RDOFolder rdoFolder)
{
RDOFolders subFolders;
RDOFolder subFolder;

try
{
subFolders = rdoFolder.Folders;
if (subFolders != null)
{
subFolder = subFolders.GetFirst();
if (subFolder != null)
{
// iterate sub folder list
for (int i = 0; i < subFolders.Count; i++)
{
// process the subfolder
ProcessFolder(userName, rdoFolder.Name + " >
", subFolder);
subFolder = subFolders.GetNext();
}
}
}
// if found an individual folder (rdoFolder) without the
subfolder then release the subfolder and subfolders COM objects

//System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolder);
subFolder = null;

System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolders);
subFolders = null;

// if there are no sub folders then process the
rdoFolder and iterate through all items
// process the individual items/emails in the folder
for (int i = 0; i < rdoFolder.Items.Count; i++)
{
RDOMail rdoMail = rdoFolder.Items[i];
try
{
// check if email can be deleted
if (DeleteEmail(rdoMail.UnRead,
rdoMail.ReceivedTime, rdoMail.Mileage))
{
Util.LogMessage(string.Format("{0}, Email
with subject '{1}' Read : '{2}' Received Time : '{3}' Mileage : '{4}' is
deleted.", userName, rdoMail.Subject, !(rdoMail.UnRead),
rdoMail.ReceivedTime, rdoMail.Mileage));
if (DeleteMail)
rdoMail.Delete(0); //dfSoftDelete (0) -
default. Deletes the item. Can still be recoverable if retention policy is
set on Exchange Server.
//dfMoveToDeletedItems
(1) - the item is moved to the Deleted Items folder
//dfHardDelete (2) -
Exchange only. Permanently deletes the item; will not be recoverable
}
}
catch (Exception ex)
{
// in case of exception for processing
individual mail log the exception and process next email
Util.LogException(ex);
}
finally
{

//System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoMail);
rdoMail = null;
}
}
}
catch (Exception ex)
{
StringBuilder strInfo = new
StringBuilder(string.Format("{1}, Failed to process folder : {0} for user :
{1}", rdoFolder.Name, userName));
Util.LogMessage(strInfo.ToString());
Util.LogException(ex);
}
finally
{

System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoFolder);
rdoFolder = null;
}
}
==================================================

The above error is coming for some of the emails for user. Can you please
let me know what could be the reason of this error.

Thanks and Regards,
Amit Kathane

"Dmitry Streblechenko" wrote:

> 1. Exchange transparently manages the locatiton of the mailboxes. It will
> list all mailboxes in the organization. As an extra check, you might want to
> read the PR_EMS_AB_HOME_MDB property using RDOAddressEntry.Fields[] (the
> property returns the name of the server where teh user has a mailbox) -
> there can be entries that have no mailboxes.
> 2. Yes, use either (but not both) Logon or LogonExchangeMailbox. Or set the
> MAPIOBJECT property if you already have a running instance of Outlook (use
> Namespace.MAPIOBJECT) or CDO 1.21 session (Session.MAPIOBJECT).
>
> Dmitry Streblechenko (MVP)
> http://www.dimastr.com/
> OutlookSpy - Outlook, CDO
> and MAPI Developer Tool
>
> "AK" wrote in message
> @microsoft.com...
> > Hello Dmitry,
> >
> > Thank you very much for your reply.
> >
> > According to your solution mentioned in one of the above responses i.e.
> >
> > 1. Run your code under the Windows user identity who can access all of the
> > required mailboxes
> > 2. Call RDOSession.Logon if you have an existing profilee pointing to that
> > user's mailbox or call RDOSession.LogonExchangeMailbox
> > 3. Loop through the entries in the RDOSession.AddressBook.GAL;
> > 4. For each RDOAddressEntry with DisplayType property equal to DT_MAILUSER
> > (= 0)
> > 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object
> > (get
> > back RDOExchangeMailboxStore)
> > 6. Loop through all subfolder and messages in tha tmailbox store stating
> > with the RDOStore.IPMRootFolder collection
> >
> > Will there be problem in step 3 and 4 if there is a multiple exchange
> > server
> > box in the domain and various users are configured with different exchange
> > box. Will I still be able to get all user's RDOAddressEntry object in
> > RDOSession.AddressBook.GAL or will it give only those users which are on
> > the
> > same exchange box as of the Windows user under which the application is
> > running?
> >
> > Also I assume that RDOSession.Logon using the existing profile of using
> > RDOSession.LogonExchangeMailbox are exclusive. I guess I don't have to
> > create
> > the profile if it's not there and can use the
> > RDOSession.LogonExchangeMailbox
> > method instead. Is that right?
> >
> > Many Thanks for your help.
> > Amit Kathane
> >
> > "Dmitry Streblechenko" wrote:
> >
> >> Once again, see steps 1 and 2. You need to call LogonExchangeMailbox
> >> *once*
> >> for the current Windows user who must have the right to access othe
> >> rmailboxes.
> >> To access other mailboxess call RDOSession.GetSharedMailbox. Do *not*
> >> call
> >> LogonExchangeMailbox for the other mailboxes.
> >>
> >> Dmitry Streblechenko (MVP)
> >> http://www.dimastr.com/
> >> OutlookSpy - Outlook, CDO
> >> and MAPI Developer Tool
> >>
> >> "AK" wrote in message
> >> @microsoft.com...
> >> > Hi,
> >> >
> >> > Thanks you very much for your reply.
> >> >
> >> > I'm understanding bit of Redemeption library now.
> >> >
> >> > One issue is when I'm trying to do login using
> >> > RDOSession.LogonExchangeMailbox
> >> >
> >> > it's popping up the UI.
> >> >
> >> > According to my requirement, I've to traverse through all mailbox which
> >> > I
> >> > guess will require login into each mailbox and a pop up UI could be an
> >> > issue?
> >> >
> >> > This UI does not come when using RDOSession.Logon method, is there
> >> > anything
> >> > I'm missing while using RDOSession.LogonExchangeMailbox or is there any
> >> > workaround to my requirement.
> >> >
> >> > Also what exctly is the usage of ProfMan library? Is it only needed
> >> > when
> >> > we
> >> > don't have a user profile to logon so that one can create a new
> >> > profile?
> >> >
> >> > Once again many thanks for your help.
> >> >
> >> >
> >> >
> >> >
> >> > "Dmitry Streblechenko" wrote:
> >> >
> >> >> Where does the item come from and why are you querying it for
> >> >> RDOContactItem? Does it come from the Contacts folder? Most likely you
> >> >> encounter a Distribution list, which is represented by the
> >> >> RDODistListItem
> >> >> object.
> >> >>
> >> >> As for what you are actually trying to do, the standard way to do
> >> >> things
> >> >> like that is to
> >> >>
> >> >> 1. Run your code under the Windows user identity who can access all of
> >> >> the
> >> >> required mailboxes
> >> >> 2. Call RDOSession.Logon if you have an existing profilee pointing to
> >> >> that
> >> >> user's mailbox or call RDOSession.LogonExchangeMailbox
> >> >> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
> >> >> 4. For each RDOAddressEntry with DisplayType property equal to
> >> >> DT_MAILUSER
> >> >> (= 0)
> >> >> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry
> >> >> object
> >> >> (get
> >> >> back RDOExchangeMailboxStore)
> >> >> 6. Loop through all subfolder and messages in tha tmailbox store
> >> >> stating
> >> >> with the RDOStore.IPMRootFolder collection
> >> >>
> >> >> Dmitry Streblechenko (MVP)
> >> >> http://www.dimastr.com/
> >> >> OutlookSpy - Outlook, CDO
> >> >> and MAPI Developer Tool
> >> >>
> >> >> Dmitry Streblechenko (MVP)
> >> >> http://www.dimastr.com/
> >> >> OutlookSpy - Outlook, CDO
> >> >> and MAPI Developer Tool
> >> >>
> >> >> "AK" wrote in message
> >> >> @microsoft.com...
> >> >> > Hi,
> >> >> >
> >> >> > I'm also getting the same kind of exception as below.
> >> >> >
> >> >> > "Unable to cast COM object of type 'System.__ComObject' to interface
> >> >> > type
> >> >> > 'Redemption.RDOContactItem'. This operation failed because the
> >> >> > QueryInterface
> >> >> > call on the COM component for the interface with IID
> >> >> > '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the following
> >> >> > error:
> >> >> > No such interface supported (Exception from HRESULT: 0x80004002
> >> >> > (E_NOINTERFACE))."
> >> >> >
> >> >> > I'm very new to the Redemption and it's object model.
> >> >> >
> >> >> > What I'm trying to do is as follows.
> >> >> >
> >> >> > "To retrieve all mailbox accounts from the domain (example xyz.com),
> >> >> > once
> >> >> > retrieved a configurable number of worker threads will be spawned.
> >> >> > Each
> >> >> > worker thread will take a single mailbox account and query Active
> >> >> > Directory
> >> >> > to see which Exchange Server the mailbox account resides on. The
> >> >> > worker
> >> >> > thread will then trawl through each message in its given mailbox's
> >> >> > account
> >> >> > checking its Read, Received Date and the Mileage properties. If the
> >> >> > mail
> >> >> > message meets the given criteria (mail item has been read, is older
> >> >> > than x
> >> >> > months etc) the email item will be logged and if in the correct mode
> >> >> > deleted.
> >> >> > Once a mailbox has been fully processes it will go on for next
> >> >> > mailbox".
> >> >> >
> >> >> > I've few queries as below.
> >> >> >
> >> >> > 1. How to retrieve all mailbox accounts from the domain (e.g.
> >> >> > xyz.com)?
> >> >> > 2. Can you please let me know what objects in Redemption object
> >> >> > model
> >> >> > will
> >> >> > be helpful for this?
> >> >> > 3. Do I have to use ProfMan library?
> >> >> >
> >> >> > Please help me. As mentioned I'm very new to Redemption or for that
> >> >> > matter
> >> >> > exchange or outlook programming.
> >> >> >
> >> >> > Many Thanks in advance.
> >> >> > Amit Kathane
> >> >> >
> >> >> >
> >> >> >
> >> >> > "Dmitry Streblechenko" wrote:
> >> >> >
> >> >> >> This is fairly standard and is not limited to Redemption at all.
> >> >> >> Most COM objects do not support QueryInterface on the corresponding
> >> >> >> CLASS_xyz GUID (since it is really an id and does not correspond to
> >> >> >> an
> >> >> >> interface).
> >> >> >> On the .Net level, avoid declaring and casting COM objects to the
> >> >> >> XYZClass
> >> >> >> (e.g. RDOContactItemClass).
> >> >> >>
> >> >> >> Dmitry Streblechenko (MVP)
> >> >> >> http://www.dimastr.com/
> >> >> >> OutlookSpy - Outlook, CDO
> >> >> >> and MAPI Developer Tool
> >> >> >>
> >> >> >> wrote in message
> >> >> >> @o80g2000hse.googlegroups.com...
> >> >> >> > Thank you for response.
> >> >> >> >
> >> >> >> > I've posted wrong example.
> >> >> >> > The cast which doesn't work is RDOContactItemClass contact = item
> >> >> >> > as
> >> >> >> > RDOContactItemClass;
> >> >> >> > This line returns null, but RDOContactItem contact = item as
> >> >> >> > RDOContactItem works and your example also.
> >> >> >> >
> >> >> >> > What is amazing that method Items.Add("IPM.Contacts") return
> >> >> >> > instance
> >> >> >> > of RDOMailClass which
> >> >> >> > doesn't implement RDOContactItem.
> >> >> >> >
> >> >> >> > I think when tlbimp.exe generates interop assembly
> >> >> >> > than overrides cast operators.
> >> >> >> > Maybe this is workaround for C++ multi-inheritance which is not
> >> >> >> > present in C#?
> >> >> >> >
> >> >> >>
> >> >> >>
> >> >> >>
> >> >>
> >> >>
> >> >>
> >>
> >>
> >>
>
>
>

Dmitry Streblechenko · Joined: 12 Aug 2007 Posts: 220

You are most likely running out of the RPC channel limit
(http://support.microsoft.com/kb/830829) - since .Net does not release COM
objects immediately, you can easily go over the limit even if you explicitly
release COM objects using Marshal.ReleaseCOMObject.
Avoid using multiple dot notation (e.g. rdoFolder.Items.Count) to make sure
the compiler does not create implicit variables that you cannot reference
and release.
GC.Collect() might help.
Next version of Redemption (send me an e-mail if you want a beta version)
will keep track of the open MAPI objeects and transparently release oldest
unmodified MAPI objects that can be easily reopened on demand (Redemption
objects will stay alive of course) when the number of open objects of a
particular kind approaches the limit.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"AK" wrote in message @microsoft.com...
> Hello Dmitry,
>
> Thank you very much for your assistance.
>
> I'm getting following error randomly.
>
> "Error in IMAPIFolder.GetContentsTable: MAPI_E_CALL_FAILED"
>
> Please find below my code
>
> ======================================
> private static void ProcessUserMailbox(string userName)
> {
> RDOSession rdoSession = new RDOSessionClass();
> try
> {
> // get the admin user name from the configuration file
> string systemUserName =
> Properties.Settings.Default.userName;
> string exchangeSrvrName =
> Properties.Settings.Default.UserMailboxServer;
>
> if (string.IsNullOrEmpty(systemUserName))
> systemUserName =
> WindowsIdentity.GetCurrent().Name.ToString();
>
> rdoSession.LogonExchangeMailbox(systemUserName,
> exchangeSrvrName);
> IRDOFolder rootFolder =
> rdoSession.GetSharedMailbox(userName).RootFolder;
>
> // iterate through all folders and subfolders
> RDOFolders rdoFolders = rootFolder.Folders;
> if (rdoFolders != null)
> {
> RDOFolder rdoFolder = rdoFolders.GetFirst();
> if (rdoFolder != null)
> {
> // iterate folder list
> for (int i = 0; i < rdoFolders.Count; i++)
> {
> // process the individual folder to search for
> emails that can be deleted
> ProcessFolder(userName, rootFolder.Name + " >
> ",
> rdoFolder);
> rdoFolder = rdoFolders.GetNext();
> }
> }
> }
> // release the COM object for the root folder.
>
> System.Runtime.InteropServices.Marshal.ReleaseComObject(rootFolder);
> rootFolder = null;
> }
> catch (Exception ex)
> {
> StringBuilder strInfo = new
> StringBuilder(string.Format("{0}, Failed to process mailbox for user :
> {0}",
> userName));
> Util.LogMessage(strInfo.ToString());
> Util.LogException(ex);
> strInfo.AppendFormat(ex.Message + Environment.NewLine +
> Util.GetInnerException(ex));
> throw new ApplicationException(strInfo.ToString());
> }
> finally
> {
> rdoSession.Logoff();
>
> System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoSession);
> rdoSession = null;
> GC.Collect();
> }
> }
>
> private static void ProcessFolder(string userName, string
> folderPath, RDOFolder rdoFolder)
> {
> RDOFolders subFolders;
> RDOFolder subFolder;
>
> try
> {
> subFolders = rdoFolder.Folders;
> if (subFolders != null)
> {
> subFolder = subFolders.GetFirst();
> if (subFolder != null)
> {
> // iterate sub folder list
> for (int i = 0; i < subFolders.Count; i++)
> {
> // process the subfolder
> ProcessFolder(userName, rdoFolder.Name + "
> >
> ", subFolder);
> subFolder = subFolders.GetNext();
> }
> }
> }
> // if found an individual folder (rdoFolder) without
> the
> subfolder then release the subfolder and subfolders COM objects
>
> //System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolder);
> subFolder = null;
>
> System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolders);
> subFolders = null;
>
> // if there are no sub folders then process the
> rdoFolder and iterate through all items
> // process the individual items/emails in the folder
> for (int i = 0; i < rdoFolder.Items.Count; i++)
> {
> RDOMail rdoMail = rdoFolder.Items[i];
> try
> {
> // check if email can be deleted
> if (DeleteEmail(rdoMail.UnRead,
> rdoMail.ReceivedTime, rdoMail.Mileage))
> {
> Util.LogMessage(string.Format("{0}, Email
> with subject '{1}' Read : '{2}' Received Time : '{3}' Mileage : '{4}' is
> deleted.", userName, rdoMail.Subject, !(rdoMail.UnRead),
> rdoMail.ReceivedTime, rdoMail.Mileage));
> if (DeleteMail)
> rdoMail.Delete(0); //dfSoftDelete (0) -
> default. Deletes the item. Can still be recoverable if retention policy is
> set on Exchange Server.
>
> //dfMoveToDeletedItems
> (1) - the item is moved to the Deleted Items folder
> //dfHardDelete (2) -
> Exchange only. Permanently deletes the item; will not be recoverable
> }
> }
> catch (Exception ex)
> {
> // in case of exception for processing
> individual mail log the exception and process next email
> Util.LogException(ex);
> }
> finally
> {
>
> //System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoMail);
> rdoMail = null;
> }
> }
> }
> catch (Exception ex)
> {
> StringBuilder strInfo = new
> StringBuilder(string.Format("{1}, Failed to process folder : {0} for user
> :
> {1}", rdoFolder.Name, userName));
> Util.LogMessage(strInfo.ToString());
> Util.LogException(ex);
> }
> finally
> {
>
> System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoFolder);
> rdoFolder = null;
> }
> }
> ==================================================
>
> The above error is coming for some of the emails for user. Can you please
> let me know what could be the reason of this error.
>
> Thanks and Regards,
> Amit Kathane
>
> "Dmitry Streblechenko" wrote:
>
>> 1. Exchange transparently manages the locatiton of the mailboxes. It will
>> list all mailboxes in the organization. As an extra check, you might want
>> to
>> read the PR_EMS_AB_HOME_MDB property using RDOAddressEntry.Fields[] (the
>> property returns the name of the server where teh user has a mailbox) -
>> there can be entries that have no mailboxes.
>> 2. Yes, use either (but not both) Logon or LogonExchangeMailbox. Or set
>> the
>> MAPIOBJECT property if you already have a running instance of Outlook
>> (use
>> Namespace.MAPIOBJECT) or CDO 1.21 session (Session.MAPIOBJECT).
>>
>> Dmitry Streblechenko (MVP)
>> http://www.dimastr.com/
>> OutlookSpy - Outlook, CDO
>> and MAPI Developer Tool
>>
>> "AK" wrote in message
>> @microsoft.com...
>> > Hello Dmitry,
>> >
>> > Thank you very much for your reply.
>> >
>> > According to your solution mentioned in one of the above responses i.e.
>> >
>> > 1. Run your code under the Windows user identity who can access all of
>> > the
>> > required mailboxes
>> > 2. Call RDOSession.Logon if you have an existing profilee pointing to
>> > that
>> > user's mailbox or call RDOSession.LogonExchangeMailbox
>> > 3. Loop through the entries in the RDOSession.AddressBook.GAL;
>> > 4. For each RDOAddressEntry with DisplayType property equal to
>> > DT_MAILUSER
>> > (= 0)
>> > 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object
>> > (get
>> > back RDOExchangeMailboxStore)
>> > 6. Loop through all subfolder and messages in tha tmailbox store
>> > stating
>> > with the RDOStore.IPMRootFolder collection
>> >
>> > Will there be problem in step 3 and 4 if there is a multiple exchange
>> > server
>> > box in the domain and various users are configured with different
>> > exchange
>> > box. Will I still be able to get all user's RDOAddressEntry object in
>> > RDOSession.AddressBook.GAL or will it give only those users which are
>> > on
>> > the
>> > same exchange box as of the Windows user under which the application is
>> > running?
>> >
>> > Also I assume that RDOSession.Logon using the existing profile of using
>> > RDOSession.LogonExchangeMailbox are exclusive. I guess I don't have to
>> > create
>> > the profile if it's not there and can use the
>> > RDOSession.LogonExchangeMailbox
>> > method instead. Is that right?
>> >
>> > Many Thanks for your help.
>> > Amit Kathane
>> >
>> > "Dmitry Streblechenko" wrote:
>> >
>> >> Once again, see steps 1 and 2. You need to call LogonExchangeMailbox
>> >> *once*
>> >> for the current Windows user who must have the right to access othe
>> >> rmailboxes.
>> >> To access other mailboxess call RDOSession.GetSharedMailbox. Do *not*
>> >> call
>> >> LogonExchangeMailbox for the other mailboxes.
>> >>
>> >> Dmitry Streblechenko (MVP)
>> >> http://www.dimastr.com/
>> >> OutlookSpy - Outlook, CDO
>> >> and MAPI Developer Tool
>> >>
>> >> "AK" wrote in message
>> >> @microsoft.com...
>> >> > Hi,
>> >> >
>> >> > Thanks you very much for your reply.
>> >> >
>> >> > I'm understanding bit of Redemeption library now.
>> >> >
>> >> > One issue is when I'm trying to do login using
>> >> > RDOSession.LogonExchangeMailbox
>> >> >
>> >> > it's popping up the UI.
>> >> >
>> >> > According to my requirement, I've to traverse through all mailbox
>> >> > which
>> >> > I
>> >> > guess will require login into each mailbox and a pop up UI could be
>> >> > an
>> >> > issue?
>> >> >
>> >> > This UI does not come when using RDOSession.Logon method, is there
>> >> > anything
>> >> > I'm missing while using RDOSession.LogonExchangeMailbox or is there
>> >> > any
>> >> > workaround to my requirement.
>> >> >
>> >> > Also what exctly is the usage of ProfMan library? Is it only needed
>> >> > when
>> >> > we
>> >> > don't have a user profile to logon so that one can create a new
>> >> > profile?
>> >> >
>> >> > Once again many thanks for your help.
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > "Dmitry Streblechenko" wrote:
>> >> >
>> >> >> Where does the item come from and why are you querying it for
>> >> >> RDOContactItem? Does it come from the Contacts folder? Most likely
>> >> >> you
>> >> >> encounter a Distribution list, which is represented by the
>> >> >> RDODistListItem
>> >> >> object.
>> >> >>
>> >> >> As for what you are actually trying to do, the standard way to do
>> >> >> things
>> >> >> like that is to
>> >> >>
>> >> >> 1. Run your code under the Windows user identity who can access all
>> >> >> of
>> >> >> the
>> >> >> required mailboxes
>> >> >> 2. Call RDOSession.Logon if you have an existing profilee pointing
>> >> >> to
>> >> >> that
>> >> >> user's mailbox or call RDOSession.LogonExchangeMailbox
>> >> >> 3. Loop through the entries in the RDOSession.AddressBook.GAL;
>> >> >> 4. For each RDOAddressEntry with DisplayType property equal to
>> >> >> DT_MAILUSER
>> >> >> (= 0)
>> >> >> 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry
>> >> >> object
>> >> >> (get
>> >> >> back RDOExchangeMailboxStore)
>> >> >> 6. Loop through all subfolder and messages in tha tmailbox store
>> >> >> stating
>> >> >> with the RDOStore.IPMRootFolder collection
>> >> >>
>> >> >> Dmitry Streblechenko (MVP)
>> >> >> http://www.dimastr.com/
>> >> >> OutlookSpy - Outlook, CDO
>> >> >> and MAPI Developer Tool
>> >> >>
>> >> >> Dmitry Streblechenko (MVP)
>> >> >> http://www.dimastr.com/
>> >> >> OutlookSpy - Outlook, CDO
>> >> >> and MAPI Developer Tool
>> >> >>
>> >> >> "AK" wrote in message
>> >> >> @microsoft.com...
>> >> >> > Hi,
>> >> >> >
>> >> >> > I'm also getting the same kind of exception as below.
>> >> >> >
>> >> >> > "Unable to cast COM object of type 'System.__ComObject' to
>> >> >> > interface
>> >> >> > type
>> >> >> > 'Redemption.RDOContactItem'. This operation failed because the
>> >> >> > QueryInterface
>> >> >> > call on the COM component for the interface with IID
>> >> >> > '{DA18E730-205D-4CED-9E61-4DBBC35D2EE5}' failed due to the
>> >> >> > following
>> >> >> > error:
>> >> >> > No such interface supported (Exception from HRESULT: 0x80004002
>> >> >> > (E_NOINTERFACE))."
>> >> >> >
>> >> >> > I'm very new to the Redemption and it's object model.
>> >> >> >
>> >> >> > What I'm trying to do is as follows.
>> >> >> >
>> >> >> > "To retrieve all mailbox accounts from the domain (example
>> >> >> > xyz.com),
>> >> >> > once
>> >> >> > retrieved a configurable number of worker threads will be
>> >> >> > spawned.
>> >> >> > Each
>> >> >> > worker thread will take a single mailbox account and query Active
>> >> >> > Directory
>> >> >> > to see which Exchange Server the mailbox account resides on. The
>> >> >> > worker
>> >> >> > thread will then trawl through each message in its given
>> >> >> > mailbox's
>> >> >> > account
>> >> >> > checking its Read, Received Date and the Mileage properties. If
>> >> >> > the
>> >> >> > mail
>> >> >> > message meets the given criteria (mail item has been read, is
>> >> >> > older
>> >> >> > than x
>> >> >> > months etc) the email item will be logged and if in the correct
>> >> >> > mode
>> >> >> > deleted.
>> >> >> > Once a mailbox has been fully processes it will go on for next
>> >> >> > mailbox".
>> >> >> >
>> >> >> > I've few queries as below.
>> >> >> >
>> >> >> > 1. How to retrieve all mailbox accounts from the domain (e.g.
>> >> >> > xyz.com)?
>> >> >> > 2. Can you please let me know what objects in Redemption object
>> >> >> > model
>> >> >> > will
>> >> >> > be helpful for this?
>> >> >> > 3. Do I have to use ProfMan library?
>> >> >> >
>> >> >> > Please help me. As mentioned I'm very new to Redemption or for
>> >> >> > that
>> >> >> > matter
>> >> >> > exchange or outlook programming.
>> >> >> >
>> >> >> > Many Thanks in advance.
>> >> >> > Amit Kathane
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > "Dmitry Streblechenko" wrote:
>> >> >> >
>> >> >> >> This is fairly standard and is not limited to Redemption at all.
>> >> >> >> Most COM objects do not support QueryInterface on the
>> >> >> >> corresponding
>> >> >> >> CLASS_xyz GUID (since it is really an id and does not correspond
>> >> >> >> to
>> >> >> >> an
>> >> >> >> interface).
>> >> >> >> On the .Net level, avoid declaring and casting COM objects to
>> >> >> >> the
>> >> >> >> XYZClass
>> >> >> >> (e.g. RDOContactItemClass).
>> >> >> >>
>> >> >> >> Dmitry Streblechenko (MVP)
>> >> >> >> http://www.dimastr.com/
>> >> >> >> OutlookSpy - Outlook, CDO
>> >> >> >> and MAPI Developer Tool
>> >> >> >>
>> >> >> >> wrote in message
>> >> >> >> @o80g2000hse.googlegroups.com...
>> >> >> >> > Thank you for response.
>> >> >> >> >
>> >> >> >> > I've posted wrong example.
>> >> >> >> > The cast which doesn't work is RDOContactItemClass contact =
>> >> >> >> > item
>> >> >> >> > as
>> >> >> >> > RDOContactItemClass;
>> >> >> >> > This line returns null, but RDOContactItem contact = item as
>> >> >> >> > RDOContactItem works and your example also.
>> >> >> >> >
>> >> >> >> > What is amazing that method Items.Add("IPM.Contacts") return
>> >> >> >> > instance
>> >> >> >> > of RDOMailClass which
>> >> >> >> > doesn't implement RDOContactItem.
>> >> >> >> >
>> >> >> >> > I think when tlbimp.exe generates interop assembly
>> >> >> >> > than overrides cast operators.
>> >> >> >> > Maybe this is workaround for C++ multi-inheritance which is
>> >> >> >> > not
>> >> >> >> > present in C#?
>> >> >> >> >
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >>
>> >> >>
>> >> >>
>> >>
>> >>
>> >>
>>
>>
>>

AK · Joined: 12 Aug 2007 Posts: 9

Hello Dmitry,

I'm using GC.Collect and modified my code to remove multiple dot notations
(e.g. rdoFolder.Items.count) but still I'm getting an error for
"MAPI_E_CALL_FAILED".

This is happening especially for RDOMail object.

My code for it reads as

====================================================
Queue DeleteEMailQueue = new Queue();
RDOItems rdoItems = rdoFolder.Items;
for (int i = 0; i < rdoItems.Count; i++)
{
RDOMail rdoMail = rdoFolder.Items[i];
try
{
// check if email can be deleted
if (DeleteEmail(rdoMail.UnRead, rdoMail.ReceivedTime,
rdoMail.Mileage))
{
rdoMail.Delete(0);
}
}
catch (Exception ex)
{
Util.LogException(ex);
}
finally
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoMail);
rdoMail = null;
GC.Collect();
}
====================================================

The error occurs after reading say around 700/800 emails in one folder.

Can you please suggest any workaround for this?

Thanks and Regards,
Amit Kathane

"Dmitry Streblechenko" wrote:

> You are most likely running out of the RPC channel limit
> (http://support.microsoft.com/kb/830829) - since .Net does not release COM
> objects immediately, you can easily go over the limit even if you explicitly
> release COM objects using Marshal.ReleaseCOMObject.
> Avoid using multiple dot notation (e.g. rdoFolder.Items.Count) to make sure
> the compiler does not create implicit variables that you cannot reference
> and release.
> GC.Collect() might help.
> Next version of Redemption (send me an e-mail if you want a beta version)
> will keep track of the open MAPI objeects and transparently release oldest
> unmodified MAPI objects that can be easily reopened on demand (Redemption
> objects will stay alive of course) when the number of open objects of a
> particular kind approaches the limit.
>
> Dmitry Streblechenko (MVP)
> http://www.dimastr.com/
> OutlookSpy - Outlook, CDO
> and MAPI Developer Tool
>
> "AK" wrote in message
> @microsoft.com...
> > Hello Dmitry,
> >
> > Thank you very much for your assistance.
> >
> > I'm getting following error randomly.
> >
> > "Error in IMAPIFolder.GetContentsTable: MAPI_E_CALL_FAILED"
> >
> > Please find below my code
> >
> > ======================================
> > private static void ProcessUserMailbox(string userName)
> > {
> > RDOSession rdoSession = new RDOSessionClass();
> > try
> > {
> > // get the admin user name from the configuration file
> > string systemUserName =
> > Properties.Settings.Default.userName;
> > string exchangeSrvrName =
> > Properties.Settings.Default.UserMailboxServer;
> >
> > if (string.IsNullOrEmpty(systemUserName))
> > systemUserName =
> > WindowsIdentity.GetCurrent().Name.ToString();
> >
> > rdoSession.LogonExchangeMailbox(systemUserName,
> > exchangeSrvrName);
> > IRDOFolder rootFolder =
> > rdoSession.GetSharedMailbox(userName).RootFolder;
> >
> > // iterate through all folders and subfolders
> > RDOFolders rdoFolders = rootFolder.Folders;
> > if (rdoFolders != null)
> > {
> > RDOFolder rdoFolder = rdoFolders.GetFirst();
> > if (rdoFolder != null)
> > {
> > // iterate folder list
> > for (int i = 0; i < rdoFolders.Count; i++)
> > {
> > // process the individual folder to search for
> > emails that can be deleted
> > ProcessFolder(userName, rootFolder.Name + " >
> > ",
> > rdoFolder);
> > rdoFolder = rdoFolders.GetNext();
> > }
> > }
> > }
> > // release the COM object for the root folder.
> >
> > System.Runtime.InteropServices.Marshal.ReleaseComObject(rootFolder);
> > rootFolder = null;
> > }
> > catch (Exception ex)
> > {
> > StringBuilder strInfo = new
> > StringBuilder(string.Format("{0}, Failed to process mailbox for user :
> > {0}",
> > userName));
> > Util.LogMessage(strInfo.ToString());
> > Util.LogException(ex);
> > strInfo.AppendFormat(ex.Message + Environment.NewLine +
> > Util.GetInnerException(ex));
> > throw new ApplicationException(strInfo.ToString());
> > }
> > finally
> > {
> > rdoSession.Logoff();
> >
> > System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoSession);
> > rdoSession = null;
> > GC.Collect();
> > }
> > }
> >
> > private static void ProcessFolder(string userName, string
> > folderPath, RDOFolder rdoFolder)
> > {
> > RDOFolders subFolders;
> > RDOFolder subFolder;
> >
> > try
> > {
> > subFolders = rdoFolder.Folders;
> > if (subFolders != null)
> > {
> > subFolder = subFolders.GetFirst();
> > if (subFolder != null)
> > {
> > // iterate sub folder list
> > for (int i = 0; i < subFolders.Count; i++)
> > {
> > // process the subfolder
> > ProcessFolder(userName, rdoFolder.Name + "
> > >
> > ", subFolder);
> > subFolder = subFolders.GetNext();
> > }
> > }
> > }
> > // if found an individual folder (rdoFolder) without
> > the
> > subfolder then release the subfolder and subfolders COM objects
> >
> > //System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolder);
> > subFolder = null;
> >
> > System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolders);
> > subFolders = null;
> >
> > // if there are no sub folders then process the
> > rdoFolder and iterate through all items
> > // process the individual items/emails in the folder
> > for (int i = 0; i < rdoFolder.Items.Count; i++)
> > {
> > RDOMail rdoMail = rdoFolder.Items[i];
> > try
> > {
> > // check if email can be deleted
> > if (DeleteEmail(rdoMail.UnRead,
> > rdoMail.ReceivedTime, rdoMail.Mileage))
> > {
> > Util.LogMessage(string.Format("{0}, Email
> > with subject '{1}' Read : '{2}' Received Time : '{3}' Mileage : '{4}' is
> > deleted.", userName, rdoMail.Subject, !(rdoMail.UnRead),
> > rdoMail.ReceivedTime, rdoMail.Mileage));
> > if (DeleteMail)
> > rdoMail.Delete(0); //dfSoftDelete (0) -
> > default. Deletes the item. Can still be recoverable if retention policy is
> > set on Exchange Server.
> >
> > //dfMoveToDeletedItems
> > (1) - the item is moved to the Deleted Items folder
> > //dfHardDelete (2) -
> > Exchange only. Permanently deletes the item; will not be recoverable
> > }
> > }
> > catch (Exception ex)
> > {
> > // in case of exception for processing
> > individual mail log the exception and process next email
> > Util.LogException(ex);
> > }
> > finally
> > {
> >
> > //System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoMail);
> > rdoMail = null;
> > }
> > }
> > }
> > catch (Exception ex)
> > {
> > StringBuilder strInfo = new
> > StringBuilder(string.Format("{1}, Failed to process folder : {0} for user
> > :
> > {1}", rdoFolder.Name, userName));
> > Util.LogMessage(strInfo.ToString());
> > Util.LogException(ex);
> > }
> > finally
> > {
> >
> > System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoFolder);
> > rdoFolder = null;
> > }
> > }
> > ==================================================
> >
> > The above error is coming for some of the emails for user. Can you please
> > let me know what could be the reason of this error.
> >
> > Thanks and Regards,
> > Amit Kathane
> >
> > "Dmitry Streblechenko" wrote:
> >
> >> 1. Exchange transparently manages the locatiton of the mailboxes. It will
> >> list all mailboxes in the organization. As an extra check, you might want
> >> to
> >> read the PR_EMS_AB_HOME_MDB property using RDOAddressEntry.Fields[] (the
> >> property returns the name of the server where teh user has a mailbox) -
> >> there can be entries that have no mailboxes.
> >> 2. Yes, use either (but not both) Logon or LogonExchangeMailbox. Or set
> >> the
> >> MAPIOBJECT property if you already have a running instance of Outlook
> >> (use
> >> Namespace.MAPIOBJECT) or CDO 1.21 session (Session.MAPIOBJECT).
> >>
> >> Dmitry Streblechenko (MVP)
> >> http://www.dimastr.com/
> >> OutlookSpy - Outlook, CDO
> >> and MAPI Developer Tool
> >>
> >> "AK" wrote in message
> >> @microsoft.com...
> >> > Hello Dmitry,
> >> >
> >> > Thank you very much for your reply.
> >> >
> >> > According to your solution mentioned in one of the above responses i.e.
> >> >
> >> > 1. Run your code under the Windows user identity who can access all of
> >> > the
> >> > required mailboxes
> >> > 2. Call RDOSession.Logon if you have an existing profilee pointing to
> >> > that
> >> > user's mailbox or call RDOSession.LogonExchangeMailbox
> >> > 3. Loop through the entries in the RDOSession.AddressBook.GAL;
> >> > 4. For each RDOAddressEntry with DisplayType property equal to
> >> > DT_MAILUSER
> >> > (= 0)
> >> > 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry object
> >> > (get
> >> > back RDOExchangeMailboxStore)
> >> > 6. Loop through all subfolder and messages in tha tmailbox store
> >> > stating
> >> > with the RDOStore.IPMRootFolder collection
> >> >
> >> > Will there be problem in step 3 and 4 if there is a multiple exchange
> >> > server
> >> > box in the domain and various users are configured with different
> >> > exchange
> >> > box. Will I still be able to get all user's RDOAddressEntry object in
> >> > RDOSession.AddressBook.GAL or will it give only those users which are
> >> > on
> >> > the
> >> > same exchange box as of the Windows user under which the application is
> >> > running?
> >> >
> >> > Also I assume that RDOSession.Logon using the existing profile of using
> >> > RDOSession.LogonExchangeMailbox are exclusive. I guess I don't have to
> >> > create
> >> > the profile if it's not there and can use the
> >> > RDOSession.LogonExchangeMailbox
> >> > method instead. Is that right?
> >> >
> >> > Many Thanks for your help.
> >> > Amit Kathane
> >> >
> >> > "Dmitry Streblechenko" wrote:
> >> >
> >> >> Once again, see steps 1 and 2. You need to call LogonExchangeMailbox
> >> >> *once*
> >> >> for the current Windows user who must have the right to access othe
> >> >> rmailboxes.
> >> >> To access other mailboxess call RDOSession.GetSharedMailbox. Do *not*
> >> >> call
> >> >> LogonExchangeMailbox for the other mailboxes.
> >> >>
> >> >> Dmitry Streblechenko (MVP)
> >> >> http://www.dimastr.com/
> >> >> OutlookSpy - Outlook, CDO
> >> >> and MAPI Developer Tool
> >> >>
> >> >> "AK" wrote in message
> >> >> @microsoft.com...
> >> >> > Hi,
> >> >> >
> >> >> > Thanks you very much for your reply.
> >> >> >
> >> >> > I'm understanding bit of Redemeption library now.
> >> >> >
> >> >> > One issue is when I'm trying to do login using
> >> >> > RDOSession.LogonExchangeMailbox
> >> >> >
> >> >> > it's popping up the UI.
> >> >> >
> >> >> > According to my requirement, I've to traverse through all mailbox
> >> >> > which
> >> >> > I
> >> >> > guess will require login into each mailbox and a pop up UI could be
> >> >> > an
> >> >> > issue?
> >> >> >
> >> >> > This UI does not come when using RDOSession.Logon method, is there
> >> >> > anything

Dmitry Streblechenko · Joined: 12 Aug 2007 Posts: 220

The line
rdoFolder.Items[i];
evaluates to
rdoFolder.Items.Item(i)
So you are still using multiplee dot notation.

Do you want a beta version to see if it fixes this problem for you?

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"AK" wrote in message @microsoft.com...
> Hello Dmitry,
>
> I'm using GC.Collect and modified my code to remove multiple dot notations
> (e.g. rdoFolder.Items.count) but still I'm getting an error for
> "MAPI_E_CALL_FAILED".
>
> This is happening especially for RDOMail object.
>
> My code for it reads as
>
> ====================================================
> Queue DeleteEMailQueue = new Queue();
> RDOItems rdoItems = rdoFolder.Items;
> for (int i = 0; i < rdoItems.Count; i++)
> {
> RDOMail rdoMail = rdoFolder.Items[i];
> try
> {
> // check if email can be deleted
> if (DeleteEmail(rdoMail.UnRead, rdoMail.ReceivedTime,
> rdoMail.Mileage))
> {
> rdoMail.Delete(0);
> }
> }
> catch (Exception ex)
> {
> Util.LogException(ex);
> }
> finally
> {
> System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoMail);
> rdoMail = null;
> GC.Collect();
> }
> ====================================================
>
> The error occurs after reading say around 700/800 emails in one folder.
>
> Can you please suggest any workaround for this?
>
> Thanks and Regards,
> Amit Kathane
>
> "Dmitry Streblechenko" wrote:
>
>> You are most likely running out of the RPC channel limit
>> (http://support.microsoft.com/kb/830829) - since .Net does not release
>> COM
>> objects immediately, you can easily go over the limit even if you
>> explicitly
>> release COM objects using Marshal.ReleaseCOMObject.
>> Avoid using multiple dot notation (e.g. rdoFolder.Items.Count) to make
>> sure
>> the compiler does not create implicit variables that you cannot reference
>> and release.
>> GC.Collect() might help.
>> Next version of Redemption (send me an e-mail if you want a beta version)
>> will keep track of the open MAPI objeects and transparently release
>> oldest
>> unmodified MAPI objects that can be easily reopened on demand (Redemption
>> objects will stay alive of course) when the number of open objects of a
>> particular kind approaches the limit.
>>
>> Dmitry Streblechenko (MVP)
>> http://www.dimastr.com/
>> OutlookSpy - Outlook, CDO
>> and MAPI Developer Tool
>>
>> "AK" wrote in message
>> @microsoft.com...
>> > Hello Dmitry,
>> >
>> > Thank you very much for your assistance.
>> >
>> > I'm getting following error randomly.
>> >
>> > "Error in IMAPIFolder.GetContentsTable: MAPI_E_CALL_FAILED"
>> >
>> > Please find below my code
>> >
>> > ======================================
>> > private static void ProcessUserMailbox(string userName)
>> > {
>> > RDOSession rdoSession = new RDOSessionClass();
>> > try
>> > {
>> > // get the admin user name from the configuration file
>> > string systemUserName =
>> > Properties.Settings.Default.userName;
>> > string exchangeSrvrName =
>> > Properties.Settings.Default.UserMailboxServer;
>> >
>> > if (string.IsNullOrEmpty(systemUserName))
>> > systemUserName =
>> > WindowsIdentity.GetCurrent().Name.ToString();
>> >
>> > rdoSession.LogonExchangeMailbox(systemUserName,
>> > exchangeSrvrName);
>> > IRDOFolder rootFolder =
>> > rdoSession.GetSharedMailbox(userName).RootFolder;
>> >
>> > // iterate through all folders and subfolders
>> > RDOFolders rdoFolders = rootFolder.Folders;
>> > if (rdoFolders != null)
>> > {
>> > RDOFolder rdoFolder = rdoFolders.GetFirst();
>> > if (rdoFolder != null)
>> > {
>> > // iterate folder list
>> > for (int i = 0; i < rdoFolders.Count; i++)
>> > {
>> > // process the individual folder to search
>> > for
>> > emails that can be deleted
>> > ProcessFolder(userName, rootFolder.Name + "
>> > >
>> > ",
>> > rdoFolder);
>> > rdoFolder = rdoFolders.GetNext();
>> > }
>> > }
>> > }
>> > // release the COM object for the root folder.
>> >
>> > System.Runtime.InteropServices.Marshal.ReleaseComObject(rootFolder);
>> > rootFolder = null;
>> > }
>> > catch (Exception ex)
>> > {
>> > StringBuilder strInfo = new
>> > StringBuilder(string.Format("{0}, Failed to process mailbox for user :
>> > {0}",
>> > userName));
>> > Util.LogMessage(strInfo.ToString());
>> > Util.LogException(ex);
>> > strInfo.AppendFormat(ex.Message + Environment.NewLine +
>> > Util.GetInnerException(ex));
>> > throw new ApplicationException(strInfo.ToString());
>> > }
>> > finally
>> > {
>> > rdoSession.Logoff();
>> >
>> > System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoSession);
>> > rdoSession = null;
>> > GC.Collect();
>> > }
>> > }
>> >
>> > private static void ProcessFolder(string userName, string
>> > folderPath, RDOFolder rdoFolder)
>> > {
>> > RDOFolders subFolders;
>> > RDOFolder subFolder;
>> >
>> > try
>> > {
>> > subFolders = rdoFolder.Folders;
>> > if (subFolders != null)
>> > {
>> > subFolder = subFolders.GetFirst();
>> > if (subFolder != null)
>> > {
>> > // iterate sub folder list
>> > for (int i = 0; i < subFolders.Count; i++)
>> > {
>> > // process the subfolder
>> > ProcessFolder(userName, rdoFolder.Name +
>> > "
>> > >
>> > ", subFolder);
>> > subFolder = subFolders.GetNext();
>> > }
>> > }
>> > }
>> > // if found an individual folder (rdoFolder) without
>> > the
>> > subfolder then release the subfolder and subfolders COM objects
>> >
>> > //System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolder);
>> > subFolder = null;
>> >
>> > System.Runtime.InteropServices.Marshal.ReleaseComObject(subFolders);
>> > subFolders = null;
>> >
>> > // if there are no sub folders then process the
>> > rdoFolder and iterate through all items
>> > // process the individual items/emails in the folder
>> > for (int i = 0; i < rdoFolder.Items.Count; i++)
>> > {
>> > RDOMail rdoMail = rdoFolder.Items[i];
>> > try
>> > {
>> > // check if email can be deleted
>> > if (DeleteEmail(rdoMail.UnRead,
>> > rdoMail.ReceivedTime, rdoMail.Mileage))
>> > {
>> > Util.LogMessage(string.Format("{0},
>> > Email
>> > with subject '{1}' Read : '{2}' Received Time : '{3}' Mileage : '{4}'
>> > is
>> > deleted.", userName, rdoMail.Subject, !(rdoMail.UnRead),
>> > rdoMail.ReceivedTime, rdoMail.Mileage));
>> > if (DeleteMail)
>> > rdoMail.Delete(0); //dfSoftDelete
>> > (0) -
>> > default. Deletes the item. Can still be recoverable if retention policy
>> > is
>> > set on Exchange Server.
>> >
>> > //dfMoveToDeletedItems
>> > (1) - the item is moved to the Deleted Items folder
>> > //dfHardDelete
>> > (2) -
>> > Exchange only. Permanently deletes the item; will not be recoverable
>> > }
>> > }
>> > catch (Exception ex)
>> > {
>> > // in case of exception for processing
>> > individual mail log the exception and process next email
>> > Util.LogException(ex);
>> > }
>> > finally
>> > {
>> >
>> > //System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoMail);
>> > rdoMail = null;
>> > }
>> > }
>> > }
>> > catch (Exception ex)
>> > {
>> > StringBuilder strInfo = new
>> > StringBuilder(string.Format("{1}, Failed to process folder : {0} for
>> > user
>> > :
>> > {1}", rdoFolder.Name, userName));
>> > Util.LogMessage(strInfo.ToString());
>> > Util.LogException(ex);
>> > }
>> > finally
>> > {
>> >
>> > System.Runtime.InteropServices.Marshal.ReleaseComObject(rdoFolder);
>> > rdoFolder = null;
>> > }
>> > }
>> > ==================================================
>> >
>> > The above error is coming for some of the emails for user. Can you
>> > please
>> > let me know what could be the reason of this error.
>> >
>> > Thanks and Regards,
>> > Amit Kathane
>> >
>> > "Dmitry Streblechenko" wrote:
>> >
>> >> 1. Exchange transparently manages the locatiton of the mailboxes. It
>> >> will
>> >> list all mailboxes in the organization. As an extra check, you might
>> >> want
>> >> to
>> >> read the PR_EMS_AB_HOME_MDB property using RDOAddressEntry.Fields[]
>> >> (the
>> >> property returns the name of the server where teh user has a
>> >> mailbox) -
>> >> there can be entries that have no mailboxes.
>> >> 2. Yes, use either (but not both) Logon or LogonExchangeMailbox. Or
>> >> set
>> >> the
>> >> MAPIOBJECT property if you already have a running instance of Outlook
>> >> (use
>> >> Namespace.MAPIOBJECT) or CDO 1.21 session (Session.MAPIOBJECT).
>> >>
>> >> Dmitry Streblechenko (MVP)
>> >> http://www.dimastr.com/
>> >> OutlookSpy - Outlook, CDO
>> >> and MAPI Developer Tool
>> >>
>> >> "AK" wrote in message
>> >> @microsoft.com...
>> >> > Hello Dmitry,
>> >> >
>> >> > Thank you very much for your reply.
>> >> >
>> >> > According to your solution mentioned in one of the above responses
>> >> > i.e.
>> >> >
>> >> > 1. Run your code under the Windows user identity who can access all
>> >> > of
>> >> > the
>> >> > required mailboxes
>> >> > 2. Call RDOSession.Logon if you have an existing profilee pointing
>> >> > to
>> >> > that
>> >> > user's mailbox or call RDOSession.LogonExchangeMailbox
>> >> > 3. Loop through the entries in the RDOSession.AddressBook.GAL;
>> >> > 4. For each RDOAddressEntry with DisplayType property equal to
>> >> > DT_MAILUSER
>> >> > (= 0)
>> >> > 5. Call RDOSession.GetSharedMailbox passing that RDOAddressEntry
>> >> > object
>> >> > (get
>> >> > back RDOExchangeMailboxStore)
>> >> > 6. Loop through all subfolder and messages in tha tmailbox store
>> >> > stating
>> >> > with the RDOStore.IPMRootFolder collection
>> >> >
>> >> > Will there be problem in step 3 and 4 if there is a multiple
>> >> > exchange
>> >> > server
>> >> > box in the domain and various users are configured with different
>> >> > exchange
>> >> > box. Will I still be able to get all user's RDOAddressEntry object
>> >> > in
>> >> > RDOSession.AddressBook.GAL or will it give only those users which
>> >> > are
>> >> > on
>> >> > the
>> >> > same exchange box as of the Windows user under which the application
>> >> > is
>> >> > running?
>> >> >
>> >> > Also I assume that RDOSession.Logon using the existing profile of
>> >> > using
>> >> > RDOSession.LogonExchangeMailbox are exclusive. I guess I don't have
>> >> > to
>> >> > create
>> >> > the profile if it's not there and can use the
>> >> > RDOSession.LogonExchangeMailbox
>> >> > method instead. Is that right?
>> >> >
>> >> > Many Thanks for your help.
>> >> > Amit Kathane
>> >> >
>> >> > "Dmitry Streblechenko" wrote:
>> >> >
>> >> >> Once again, see steps 1 and 2. You need to call
>> >> >> LogonExchangeMailbox
>> >> >> *once*
>> >> >> for the current Windows user who must have the right to access othe
>> >> >> rmailboxes.
>> >> >> To access other mailboxess call RDOSession.GetSharedMailbox. Do
>> >> >> *not*
>> >> >> call
>> >> >> LogonExchangeMailbox for the other mailboxes.
>> >> >>
>> >> >> Dmitry Streblechenko (MVP)
>> >> >> http://www.dimastr.com/
>> >> >> OutlookSpy - Outlook, CDO
>> >> >> and MAPI Developer Tool
>> >> >>
>> >> >> "AK" wrote in message
>> >> >> @microsoft.com...
>> >> >> > Hi,
>> >> >> >
>> >> >> > Thanks you very much for your reply.
>> >> >> >
>> >> >> > I'm understanding bit of Redemeption library now.
>> >> >> >
>> >> >> > One issue is when I'm trying to do login using
>> >> >> > RDOSession.LogonExchangeMailbox
>> >> >> >
>> >> >> > it's popping up the UI.
>> >> >> >
>> >> >> > According to my requirement, I've to traverse through all mailbox
>> >> >> > which
>> >> >> > I
>> >> >> > guess will require login into each mailbox and a pop up UI could
>> >> >> > be
>> >> >> > an
>> >> >> > issue?
>> >> >> >
>> >> >> > This UI does not come when using RDOSession.Logon method, is
>> >> >> > there
>> >> >> > anything

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