i have notice a strange behaviour, for example:
we are an admin, and want to add a mailbox to a domain
which is not assigned to anyone,
allowed to create 0 email accounts".
this is a low-critical problem, but maybe there are
other places where the user_can_add () function can
give strange results..
what do u think about this fixing for line 603 of
add 1 line:
if($uid=='0' AND is_admin()) return true;
if(!$lim) return false;
if($lim < 0) return true;