SMEServer Mailman

https://bugs.koozali.org/show_bug.cgi?id=8056

Manually moving "www" after "apache" resolved the CGI-error. 
 
# egrep "(apache|www):" /etc/group
must answer in this order:

apache:x:102:
www:x:102:admin,apache,www

/usr/lib/mailman/bin/check_perms -f

File locations

/var/lib/mailman		mailman lists and archives
/usr/lib/mailman		mailman program files
/usr/lib/mailman/aliases	qmail alias files

Command line options

/usr/lib/mailman/bin/mmsitepass		set the master password for all lists

then run;

config setprop mailman SitePass YOUR_PASSWORD

/usr/lib/mailman/bin/list_members [listname]	list the members of [listname]
/usr/lib/mailman/bin/list_admins [listname]	list all admins of [listname]
/usr/lib/mailman/bin/list_lists		list your mailling lists
/usr/lib/mailman/bin/list_owners		list all owners of mailling lists