The LMTP class¶
RFC 2033 defines the Local Mail Transport Protocol. In many ways, this is very similar to SMTP, but with no guarantees of queuing. It is, in a sense, an alternative to ESMTP, and is often used for local mail routing (e.g. from a Mail Transport Agent to a local command or system) where the unreliability of internet connectivity is not an issue.
LMTP class subclasses the
SMTP class and its only functional
difference is that it implements the
LHLO command, and prohibits the use