At 09:13 PM 5/4/2004 +0200, you wrote: >> May 4 10:58:51 mailer sendmail[4006]: i44EwpC04006: >> ruleset=check_mail, >> arg1=<[EMAIL PROTECTED]>, relay=[12.109.64.201], reject=501 5.1.8 >> <[EMAIL PROTECTED]>... Domain of sender address >> [EMAIL PROTECTED] does not exist > >not the same thing, this is a reject for non existant domains. Dropping mail >for which reverse dns produces a different name then the mailserver used to >id' itsself will block way more servers.
Yes, and that is probably a desirable outcome because there is no legitimate reason for a sender to falsify his or her return address. But wouldn't it also cause to be rejected any mail that was delivered via a relay? Dan Keller San Francisco _______________________________________________ cobalt-security mailing list [EMAIL PROTECTED] http://list.cobalt.com/mailman/listinfo/cobalt-security
