Article ID: 197142
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange Server 5.5 Standard Edition
This article was previously published under Q197142
SYMPTOMS
If the Internet Mail Service is configured to forward messages to another Microsoft Exchange Server computer, and an input/output (I/O) error occurs while the Internet Mail Service is attempting to forward a message using the EHLO command, the Internet Mail Service may stop unexpectedly. For example, if the Internet Mail Service sends an EHLO command to the second server, and then the second server ends the connection before sending a response, the Internet Mail Service may stop unexpectedly.
CAUSE
When an I/O error occurs under these conditions, the Internet Mail Service may not recognize that routing is being performed. As a result, it may use an incorrect address that is NULL.
RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For more information, please see the following 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:
Component: Internet Mail Service
File Name Version
-------------------------
Msexcimc.exe 5.5.2429.0
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5.
MORE INFORMATION
After you apply the fix, if an input/output error occurs while the Internet Mail Service is attempting to forward a message using the EHLO command, the Internet Mail Service does not stop unexpectedly, and attempts to resend the message using the HELO command.
Additional query words: router
Keywords: kbbug kbfix kbqfe KB197142
