How can I prevent boucing 'evil' messages? For spammer viruses, one could just employ an anti-virus and set it not to bounce. But for other messages, what can I do?
In one of my implementations, I have a gateway that filters messages, removing most spam and viruses, than redirect them to the appropriate servers. Thus, I do not have a record of user accounts for those domains. What usually happens is that I get messages for "[EMAIL PROTECTED]", from "[EMAIL PROTECTED]", and after the final server gets the message, it bounces to yahoo. I don't want to cause any trouble to other admins. I understand the way that smtp works, and that I must issue DSN's for undelivered messages. But is there any mixture of techniques to avoid bugging yahoo or other servers? Or have I missed the idea of DSN's? I think this have been discussed before, but signing messages is not enough, is it? The only think I could think now is SPF greylisting (~all) from yahoo. -- Yves Junqueira www.lynx.com.br -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
