A No Soliciting Simple Mail Transfer Protocol (SMTP) Service Extension, September 2004
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- PROPOSED STANDARD
- C. Malamud
- NON WORKING GROUP
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This document proposes an extension to Soliciting Simple Mail Transfer Protocol (SMTP) for an electronic mail equivalent to the real-world "No Soliciting" sign. In addition to the service extension, a new message header and extensions to the existing "received" message header are described. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.