XFOR: Disabling 8-BIT MIME Support on the Windows NT Option Pack SMTP Service (198415)
The information in this article applies to:
- Microsoft Exchange Server 4.0
- Microsoft Exchange Server 5.0
- Microsoft Exchange Server 5.5
This article was previously published under Q198415 SUMMARY
Exchange Server administrators may notice the following error message:
500 Host does not support 8bitmime
This may be a result of a mail host attempting to send 8-bit MIME
messages to the Exchange Server computer. The Microsoft Windows NT Option Pack comes
with an SMTP service that can be used as a relay host between the Internet
and Exchange Server. By default, this SMTP service advertises and allows 8-
bit MIME messages to be relayed. This article describes how to prevent
outside mail hosts from sending in 8-bit MIME messages by disabling the
advertisement of 8BITMIME.
Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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Keywords: | kbhowto KB198415 |
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