According to Marc Sherman, > Lasse Birnbaum Jensen wrote: > > > > Either you forward many messages, or your server is an open relay. > > Normaly the "Unroutable address" only comes when the server til > > forwarding/sending. > > That's not at all true. He's rejecting bogus addresses from spammers in > the RCPT ACL, like any properly default-configured exim server will. > > $ zgrep "Unrouteable address" /var/log/exim4/mainlog* | wc -l > 645
For many years my domain (hosted elsewhere) just accepted messages to made-up addresses and I treated them as spamtrap and fed them to the bayesian filter as spam. I only started rejecting bad addrs after I started hosting my own domain. It works well (thanks Exim authors! thanks Debian maintainer!). What I'm looking to do now is prioritize legit SMTP traffic (few or no bad-dest) over likely-spam smtp (one or more bad-dest) and block absolutely-spam smtp (multiple concurrent identities from same IP address). And if spammers or spammer-zombies get held up from moving on to the next victim, that's an added bonus. T -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
