> > What are my options to auth against /etc/shadow using PAM without giving
> > exim too much priviledges?
> >
> > I currently have two options: chgrp exim /etc/shadow or write an
> > external authenticator (which is suid root) that returns a
> > true/false which I can evaluate in exim.
> >
> > Any other ideas?
I use pam_pop3
http://wiki.exim.org/AuthenticatedSmtpUsingPam#FreeBSD