A No Soliciting Simple Mail Transfer Protocol Service Extension
RFC 3865, “A No Soliciting Simple Mail Transfer Protocol Service Extension”, is a Proposed Standard document published in September 2004 by C. Malamud. The canonical text is published by the RFC Editor.
Abstract
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]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 3865 is hosted at rfc-editor.org. Available in TXT,HTML.
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