tir, 08.04.2003 kl. 13.55 skrev Nico Erfurth:
> > A machine from the internet is able to connect to my mailserver, give a from
> > address that appears to be from my local domain and can send to anywhere
> > else on the internet, thus making me an open relay of sorts.
>
> So, you're one of these guys who allows relaying by domain?
Nothing wrong with this, as long as helo_verify_hosts and/or host_lookup
is specified (prior to the ACLs kicking in)? O.k., if reverse DNS
doesn't work for the machine in question then hard luck - or set up a
junk host list. But the alternative is authenticating and that's not
always possible.
Tony
--
Tony Earnshaw
e-post: tonni@???
www: http://www.billy.demon.nl