XFOR: MSMI Fails with Unknown Exception While MTA Delivers Message

ID: Q237182

The information in this article applies to:

Microsoft Exchange Server, versions 5.5, 5.5 SP1, 5.5 SP2

SYMPTOMS

The Microsoft Mail Connector interchange (MSMI) fails with an unknown exception while the message transfer agent (MTA) attempts to continually send a message.

CAUSE

The MSMI recognizes a problem with a message that the MTA is attempting to deliver to the MSMI. The MSMI returns a temporary failure condition to the MTA, which causes the MTA to attempt to send the message again. The temporary failure is caused by a component running out of buffer space when processing the recipients.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, please see the following article in the Microsoft Knowledge Base:

Q191014 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:

Component: MSMI

File name	Version
Mt.exe	5.5.2625.0
Mtmsg.dll	5.5.2625.0

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5, 5.5 SP1, and 5.5 SP2. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Additional query words:

Keywords : exc55 exc55sp1 exc55sp2 EXC55SP3Fix
Version : winnt:5.5,5.5 SP1,5.5 SP2
Platform : winnt
Issue type : kbbug