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[4.0.x] Refs #32074 -- Recommended aiosmtpd for minimal SMTP server. 

Follow up to 569a33579c.
Backport of 5d13cc540e from main
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Claude Paroz 2022-02-12 19:32:32 +01:00 committed by Mariusz Felisiak
parent f2d3e1fc8c
commit 11881ad69f
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docs/topics/email.txt
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@ -672,15 +672,19 @@ to a file that can be inspected at your leisure.
Another approach is to use a "dumb" SMTP server that receives the emails 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 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 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 email body. You then only need to set the :setting:`EMAIL_HOST` and
:setting:`EMAIL_PORT` accordingly. For a more detailed discussion of SMTP :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, For information about unit-testing the sending of emails in your application,
see the :ref:`topics-testing-email` section of the testing documentation. see the :ref:`topics-testing-email` section of the testing documentation.