SMTP: RFC822 Header Fields Used by the Gateway

Last reviewed: October 20, 1997
Article ID: Q118968

3.00 MS-DOS kb3rdparty

The information in this article applies to:

Microsoft Mail Gateway to SMTP, version 3.0

The Microsoft Mail Gateway to SMTP uses the following RFC 822 headers:

   TO
   CC
   FROM
   SUBJECT
   RETURN-RECEIPT-TO
   RR
   ENCODING
   X-MS-ATTACHMENT (for SMTP Gateway 3.0 and later, used for SMTP
                    backbone mail)
   X-NC-ATTACHMENT (for SMTP Gateway 2.1b or earlier)

All other fields are preserved and passed on in the message to the recipient, unused by the gateway.

Additional reference words: 3.00 smtp header RFC822
KBCategory: kb3rdparty
KBSubcategory: mailgwsmtp

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Last reviewed: October 20, 1997
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