The Intersite Messaging service using the SMTP transport has determined that one or more classes from the Collaboration Data ...

The Intersite Messaging service using the SMTP transport has determined that one or more classes from the Collaboration Data Object (CDO) library were not registered as expected. This error could also occur if a new version of the CDO library is being registered by a product installation while the Intersite Messaging service is running.  
  
This condition will correct itself once the library has been registered again.  
  
User Action
Verify that the Cdosys.dll is present and registered using the Regsvr32 command-line tool. For systems running Microsoft Exchange, verify that Cdoex.dll is registered.  
  
Additional Data  
Error value:
%2 %1
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