[Exim] Exim & Mailman

I went to the FAQ link about mailman using exim and its a broken link,
does anyone have a new link they can pop me or ... I want to drop exim in
for sendmail on our network. Now the FAQ says as long as the aliases file
does not have pipes or act like a shell.. but Mailman has pipes in there..
how hard is the conversion?

thanks ahead,
-Andy