>verify (SAV) is an abusive technique. to each his own opinion.
>In our imgate server we have "reject_unverified_sender" directive. Is >it safe deleting this directive? Count how many SAV rejected yesterday and see if you have other ways to stop that traffic: zegrep -ic "sender address rejected: un(del|ver)" /var/log/maillog.0.gz SAV should be at the very end of smtpd_recipient_retrictions, so all other filters have a chance to reject. Len