The Intersite Messaging service using the Simple Mail Transfer Protocol (SMTP) transport failed to register the event sink DLL (Ismsink.dll). The event sink notifies the messaging service that new mail has arrived. New mail will accumulate in the drop folder until this problem is corrected.

Sample Event:

The Intersite Messaging service using the SMTP transport failed to register the event sink DLL (Ismsink.dll).

The event sink notifies the messaging service that new mail has arrived. New mail will accumulate in the drop folder until this problem is corrected.

Additional Data

Error value: %2 %1

Verify that the event sink DLL (Ismsink.dll) is present and not corrupted. Register the event sink DLL manually by using the following commands:

• regsvr32 /u ismsink.dll

• regsvr32 ismsink.dll

Restart the Intersite Messaging service.

For more information, see:

• Microsoft Help and Support for Microsoft Windows Server 2008 and above

• Microsoft Knowledge Base