Microsoft KB Archive/195252

= 8BITMIME Check Cannot Be Disabled =

Article ID: 195252

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Commercial Internet System 2.0

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This article was previously published under Q195252



SUMMARY
When a Microsoft Commercial Information Server (MCIS) 2.0 Mail SMTP server sends mail that includes 8-bit content, it checks to verify that the receiving server supports the 8-bit-MIME transport extension. If it does not support this extension, the message is rejected, and a non-delivery report (NDR) is sent back to the originator. MCIS 2.0 Mail, supports the 8-bit-MIME extension as described in RFC 1652 "Service Extension for 8-bit-MIME transport." This RFC specifies that when an SMTP host wants to submit a message with 8-bit content, it should check for the 8BITMIME keyword in the response to the EHLO command. If this keyword is not present, the message should be returned to the originator.

In MCIS 2.0 Mail, this check for the 8BITMIME keyword cannot be disabled.

Additional query words: mcissmtp

Keywords: kbinfo KB195252

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