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IMAP and SMTP in memory test server

Project description

License: MIT PyPI - Python Version Code style: black


This tool combines an in-memory SMTP mail-sink with an IMAP server. All mails coming over SMTP are stored in the IMAP inbox. This can be used to test outgoing and incoming mail configurations. Built on top of aiosmtpd and pymap.

The frontend is minimally handling the content of the mailbox. Please connect a proper mail client like Thunderbird for more advanced usage.



  • SMTP (optionally with STARTTLS)
  • IMAP (optionally with STARTTLS)

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