And your other questions:
> Are there a set of mailman aliases in /etc/aliases
No, that file looks like I have never touched it. It contains
# See man 5 aliases for format
postmaster: root
I do have mailman aliases in
/usr/lib/mailman/data/aliases
# STANZA START: mailman
# CREATED: Sat Jan 30 22:48:49 2021
mailman: "|/usr/lib/mailman/mail/mailman post mailman"
mailman-admin: "|/usr/lib/mailman/mail/mailman admin mailman"
mailman-bounces: "|/usr/lib/mailman/mail/mailman bounces mailman"
mailman-confirm: "|/usr/lib/mailman/mail/mailman confirm mailman"
mailman-join: "|/usr/lib/mailman/mail/mailman join mailman"
mailman-leave: "|/usr/lib/mailman/mail/mailman leave mailman"
mailman-owner: "|/usr/lib/mailman/mail/mailman owner mailman"
mailman-request: "|/usr/lib/mailman/mail/mailman request mailman"
mailman-subscribe: "|/usr/lib/mailman/mail/mailman subscribe mailman"
mailman-unsubscribe: "|/usr/lib/mailman/mail/mailman unsubscribe mailman"
# STANZA END: mailman
> What is the content of postfix transport maps.
I ran
postconf transport_maps
and got the response
transport_maps =
------------------------------------------------------
Mailman-Users mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3/lists/mailman-users.python.org/
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: https://www.mail-archive.com/[email protected]/
https://mail.python.org/archives/list/[email protected]/
