Microsoft KB Archive/924238
Article ID: 924238
Article Last Modified on 10/25/2007
- Microsoft Exchange Server 2003 Enterprise Edition
- Microsoft Exchange Server 2003 Standard Edition
Source: Microsoft Support
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With Trend Micro 6.2 installed on the Bridgehead servers and it is set to strip out .ZIP attachments and replace it with text file that states that type of attachment is not allowed. The mail works fine and delivers if the formatting if it is HTML or Plain Text. If the format is Rich Text Format (RTF) the .ZIP is stripped out, the text file is put in its place, but then the mail will not deliver and goes into retrying every 5 minutes (or whatever is set for the default retry limit).
ENVIRONMENT: Exchange 2003 sp1 on Windows 2003 sp1. The Bridgehead server had Trend Micro 6.2 installed on it.
Trend Micro 6.2 is set to strip .ZIP attachments out of messages and replace it with a .TXT file stating the policy and that the .ZIP was removed. This works for most formats, but for Rich Text Formatting (RTF) it ended up putting a piece of mail back into queue without the last CR LF meaning the mail would never deliver.
Disabling Trend allows the RTF mail to deliver.
Netmon shows the mail try to send but never finish and the connection times out. This is because the message never finishes as one of the CR LF is missing from the end of the message.
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Keywords: kbprb kbtshoot kbrapidpub KB924238