David F. Skoll wrote: > [EMAIL PROTECTED] wrote: > > [...] > >> What backscatter? If done at SMTP the only person that should be >> notified is the sender. > > I see. And it's impossible for a virus to forge MAIL FROM:, is it?
No, is is trivial for anyone to forge "mail from" headers but that is irrelevant when virus filtering is done at the SMTP level. You don't send the rejection to the address in the "mail from." You send the rejection to the server/client that sent you the message because the SMTP conversation is still going on and you know exactly who is trying to feed it to you. Steven _______________________________________________ Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net http://www.clamav.net/support/ml
