RFC 2033 · INFORMATIONAL · 1996
SUN · 14 JUN 2026
Local Mail Transfer Protocol
Overview
RFC 2033, “Local Mail Transfer Protocol”, is an Informational document published in October 1996 by J. Myers. The canonical text is published by the RFC Editor.
Abstract
SMTP [SMTP] [HOST-REQ] and its service extensions [ESMTP] provide a mechanism for transferring mail reliably and efficiently. The design of the SMTP protocol effectively requires the server to manage a mail delivery queue. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 2033 is hosted at rfc-editor.org. Available in TXT,HTML.
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