Hello,
due to the need to modernize our Mailman installation, I want to switch two
installations to Mailman3.
My options currently seem to be:
* Install from distro repository (Ubunut 20.04) - they only have Version
3.2.2, which does not play well with the
Python version 3.8.2 that's also in the repository :-(
* Install from sources - not really difficult, but I fear that regular
updating might be a bit of a hassle, and
integration into the system as a service needs a bit of manual work :-(
* Run the Docker images created by maxking, which would probably be the most
painless option for one of the sites, but
there's still a caveat :-(
One problem which is present in all 3 cases is that the mailman server (or
container) is not on the same machine as
Postfix. For mail input and output that's not a problem since Mailman speaks
LMTP and SMTP, but sharing the Postfix maps
between machines is a bit tricky. NFS should theoretically work, but getting
all permissions right is not trivial. This
is somewhat more pressing in Docker where I don't even have control over the
UID running Mailman inside the container.
Therefore I would like to add a socketmap service to Mailman that Postfix can
query to get map information. Since this
idea is probably not totally original I'd like to ask on this list whether
someone already tried such a thing, and what
their experiences were.
Cheers,
Hans-Martin
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