I had a similar issue with changes not being saved.
It turns out that mailman requires a mailman list and save actions apparently wanted to send an e-mail vial mailrunner which failed because mailman list did not exist. Not real obvious.
I created a mailman list and then changes started to be saved.
Howdy,
Which distribution/version is it that you're using there?
-Eric
Sorry -
System hostname webserver05 (127.0.1.1) Operating system Ubuntu Linux 14.04.3 Webmin version 1.760 Virtualmin version 4.18.gpl
Apache Webserver Apache version 2.4.7
Virtualmin Virtual Servers Version 4.18.gpl, master admin mode
I had a similar issue with changes not being saved.
It turns out that mailman requires a mailman list and save actions apparently wanted to send an e-mail vial mailrunner which failed because mailman list did not exist. Not real obvious.
I created a mailman list and then changes started to be saved.
See:
http://www.askdavetaylor.com/why_is_mailman_complaining_site_list_is_missing_mailman/
newlist mailman
email ... for list: youremail@yourdomain.com
password: (put something here)
Note: I did not set up the mail alias but I was just interested in getting things so I could start mailman.
After doing this start mailman After starting mailman then try to save changes and see if they work.
Hope this helps. johnh...