Service fails with MAPI_E_Logon error, but schedule executes manually with no errors. Also the background scheduler schedules correctly with no problems.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:



191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:





File name Version

CDO.dll 5.5.2652.75

STATUS



Microsoft has confirmed that this is a problem in CDO version 1.21. This problem was first corrected in Exchange Server 5.5 Service Pack 4.



You can pick up the service pack from:

http://support.microsoft.com/default.aspx?scid=kb;EN-US;191014

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Service fails with MAPI_E_Logon error, but schedule executes manually with no errors. Also the background scheduler schedules correctly with no problems.