----- Original Message ----- From: "Len Conrad" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, November 15, 2001 12:16 PM Subject: Re: [IMail Forum] Spam and IMGate
> > >My IMGate machine (mx1.netdotcom.com) is the MX specified in my DNS. My > >Imail server host name is mail.netdotcom.com which is NOT specified as an MX > >in DNS. > > it's good not to have your mailbox server in DNS MX records. > > >A lot of spam is addressed in the to field as: [EMAIL PROTECTED] > >or [EMAIL PROTECTED] > > I get a little bit of that. The jerks assume the mx is the mailbox > server. wrong. > > >Could I safely use a regexp header filter in IMGate to block specifically > >spam to undisclosed@mx1 (or some variant) without blocking legit mail that > >as I think should really be addressed to [EMAIL PROTECTED] or > >some such variation? > > evaluating .regexp is one place to do it, but .regexp evaluations are > probably more expensive than .map table lookups. It's better to have the > SMTPD process reject, than to have the cleanup process reject. > > in smtpd_client_restrictions, add this > > check_recipient_access hash:/etc/postfix/recipient.map > > In recipient.map, > > mx1.netdotcom.com REJECT > > Len > What about outside mail addressed to [EMAIL PROTECTED] for cases where mail is rejected for some reason? ie bad or mistyped address? bad address get a reply from [EMAIL PROTECTED] but the body of the message contains [EMAIL PROTECTED] Mike Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
