XFOR: Message Attachments Received Without Original Name

• Microsoft Exchange Server, versions 5.0, 5.5

SYMPTOMS

Attachments received via an X.400 connector that originate from an Isocor MTA arrive without any indication of the original attachment name.

CAUSE

Isocor X.400 systems attach additional information when transferring attachments to track attachment names (attachment manifests). Prior to Exchange Server 5.0, this additional information arrived as a text attachment detailing attachment names. However, Exchange Server 5.0 and 5.5 incorrectly interprets this information to try to re-build the attachment with a name. As a result, the attachment name is no longer available.

STATUS

Microsoft has confirmed this to be a problem in Exchange Server versions 5.0.

A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.5. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: isocor x.400 attachment manifest

Keywords          : XFOR 
Version           : WINDOWS:5.0,5.5
Platform          : WINDOWS 
Issue type        : kbbug