XFOR: Wrong Presentation Context ID can Cause ISOCOR MTA to Drop Messages Sent from Exchange Server

ID: Q166165

The information in this article applies to:

Microsoft Exchange Server, versions 4.0, 5.0

SYMPTOMS

Messages sent by Microsoft Exchange Server version 4.0 or version 5.0 Service Pack 1 (SP1) over an 88 X.400 Connector to an ISOPLEX 1.3 MTA 4.2.4 system may be discarded by the ISOPLEX MTA with the following error message:

ASN1 error in data from EXCHANGE: Error 0 at offset 5.

A non-delivery report (NDR) is not generated.

CAUSE

Depending on the associations, Exchange Server may use an incorrect value for the Presentation Context ID in the APDU encoding.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 4.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 4.0. 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

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.0. 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

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0 SP1. We are currently researching this issue and will post more information here in the Microsoft Knowledge Base as it becomes available.

Additional query words:

Keywords : kb3rdparty kbbug5.00 kbfix5.00.sp2 XFOR
Version : WinNT:4.0,5.0
Platform : winnt
Issue type : kbbug