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.. _LMTP:
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The LMTP class
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:rfc:`2033` defines the :boldital:`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.
The ``LMTP`` class subclasses the :class:`~aiosmtpd.smtp.SMTP` class
and its only functional difference is that
it implements the ``LHLO`` command,
and prohibits the use of ``HELO`` and ``EHLO``.
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