Local Mail Transfer Protocol (LMTP)

Overview

Local Mail Transfer Protocol ("LMTP") is

From RFC2033:

Although LMTP is an alternative protocol to ESMTP, it uses (with a
few changes) the syntax and semantics of ESMTP.  This design permits
LMTP to utilize the extensions defined for ESMTP.  LMTP should be
used only by specific prior arrangement and configuration, and it
MUST NOT be used on TCP port 25.

Specifications

RFC2033

RFC2033 ("Local Mail Transfer Protocol") was published in 1996, and defines a simplified protocol for local mail delivery mainly inspired by ESMTP. It is the first, last, and only specification of its kind.

Related Concepts

LMTP relates to:

ESMTP, as it is a derivative thereof