After trying to keep mailman running, and to setup sympia, I created this little script.

Its a very simple script, which will create a simple dmarc complient mailing list.

To install run;

$ make install

Now edit /etc/postlist.conf each section defines a mailing list, and must contain:

[<list address without domain>]
description = Some description
subscribers = fully qualified addresses of all list subscribers

After editing, run

$ sudo postlist setup

to complete the setup. Every time you make changes to the configuration, it its adviced to repeat this step.

in /etc/postfix/main.cf append hash:/etc/postfix/postlist (or whereever you configured the postlist file to be generated)

E.g.:

alias_database = hash:/etc/aliases, hash:/etc/postfix/postlist

Then load postfix: postfix reload

All received mails are stored in <archive_dir>/<list name>/archive. There is no webui to read these yet.