Ideally, the administrators of those systems should fix their mailservers to eliminate misdirected bounces.
To quote SpamCop, "Configure your software to either reject messages during delivery or accept them permanently. Do not let your software make choices about delivery after it has accepted a message. If you must accept delivery before you know the status of a message, then file it internally - do not send, forward or bounce it outside your organization." http://www.spamcop.net/fom-serve/cache/329.html#bounces So my first step would be trying to get the administrators of the remote side to fix their mail servers. Secondarily, you could filter out the bounce messages on your side. On 3/15/06, Jeff Peng <[EMAIL PROTECTED]> wrote: > Hello,lists, > > Some spammers use SMTP bounce to send lots of spams to our systems.For > example,they send spams to some mail servers which are lost for antispam > mechanism (They may send to the uncorrect users on those mail > servers).Surely,these spams are faked with header,whose return-path are > facked as our system's real user accounts.Then,those mail servers bounce the > spams to our users' mailboxes.While we can't reject those mail > servers,although they are abused by spammers really. > How can I deal with these spams?Thanks. > > Jeff
