Refs #32074 -- Recommended aiosmtpd for minimal SMTP server.

Follow up to 569a33579c.
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Claude Paroz 2022-02-12 19:32:32 +01:00 committed by GitHub
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Another approach is to use a "dumb" SMTP server that receives the emails
locally and displays them to the terminal, but does not actually send
anything. Python has a built-in way to accomplish this with a single command::
anything. The `aiosmtpd`_ package provides a way to accomplish this::
python -m smtpd -n -c DebuggingServer localhost:1025
python -m pip install aiosmtpd
This command will start a minimal SMTP server listening on port 1025 of
python -m aiosmtpd -n -l localhost:8025
This command will start a minimal SMTP server listening on port 8025 of
localhost. This server prints to standard output all email headers and the
email body. You then only need to set the :setting:`EMAIL_HOST` and
:setting:`EMAIL_PORT` accordingly. For a more detailed discussion of SMTP
server options, see the Python documentation for the :mod:`smtpd` module.
server options, see the documentation of the `aiosmtpd`_ module.
.. _aiosmtpd: https://aiosmtpd.readthedocs.io/en/latest/
For information about unit-testing the sending of emails in your application,
see the :ref:`topics-testing-email` section of the testing documentation.