Python 3 port of Tagged Message Delivery Agent (TMDA) by Jonathan Kamens <jik@kamens.us>.
I did this port in January 2023 starting with the last "official" release of TMDA by the original maintainer, version 1.1.2. I didn't realize that there were two other post-1.1.2 forks, Kevin Goodsell's and Cédric Dufour's, and that the latter port already has most of the work to port to Python 3. I should have checked before doing my port; it would have saved me a lot of work!
Having said that, at least for the time being I'm going to stick with my version since it's working for me. I'm sharing it here on the off chance that it might be useful for others. This version, or at least the parts of it that I'm actually working, seems to be working fine with Python 3.9.
See the README file for more information about what TMDA is. The Wiki referenced there is broken, but you can access it through the Wayback Machine if you'd like. The SourceForge tmda-users mailing list also still works.
For the most part the only changes I've made to the code are what was
necessary to get it to run and work under Python 3. However, there is
one significant new contribution I've made: a simple TMDA CGI wrapper
which allows you to whitelist and blacklist senders or delete messages
through a web server running on the same host as TMDA. See
simple-tmda.cgi in the contrib directory. It has a detailed
comment at the top explaining how to use it.