Knowledge Base

SMTP: RFC822 Header Fields Used by the Gateway

Article ID: 118968

Article Last Modified on 10/30/2006

APPLIES TO

This article was previously published under Q118968

SUMMARY

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 query words: 3.00 smtp header RFC822

Keywords: KB118968


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