> You should have a mailman user/group, and /var/db/mailman should be
> 775 mailman:mailman
    
well, pkgsrc created the u/g entries, but /var/db/mailman was created
root:staff by pkgsrc.
    
> You may want to tweak MAILMAN_MAILGROUP before compiling mailman.
> However on my system I don't have problems with apache running www:www
> I have a lot of scripts sgid mailman in /usr/pkg/lib/mailman, however.

yeah, after playing with that for a while. i decided to run apache with
u/g mailman:mailman...
    
/mtr