A temporary mailbox/mail receiving server in Python

Question

Need sugestions on how to implement/what to use/what or about what to read in order to know how, a mail server in Python, which would let me to generate temporary mailboxes.

Let’s say I have a domain test.com, I would like to be able to setup for example a mailbox [email protected], which would receive and store mails (even in txt files).

What do I need to be able to do that? (I’m interested in links or explanations rather than implementations)

Answer 1

Python 3 ships with the smtpd module that can be used to implement this.

You'll probably want to trivially subclass smtpd.SMTPServer (maybe even derive from or at least be inspired by smtpd.DebuggingServer, but have it print out to files instead of standard output).

Once that's up and running (you can use the smtplib clients to test things out), you'll need to have that server process running on a machine on port 25 (the standard SMTP port), and you'll need to point the MX record of test.com to that machine's address.