From: Brian Evans (no email)
Date: Fri Sep 26 2008 - 11:37:15 EDT
Peter L. Berghold wrote:
> Brian Evans - Postfix List wrote:
> > Without a current 'postconf -n', no one here can tell you.
> relay_domains = bayshoredogclub.org,
No relay_recipient_maps could make you an (out|back)scatter source.
> smtpd_helo_restrictions = permit_mynetworks, reject_invalid_hostname,
The problem comes from reject_unknown_hostname in this case. You don't
have a check_helo_access map before it to whitelist the client in question.
> smtpd_recipient_restrictions = check_sender_access
> hash:/etc/postfix/access, permit_mynetworks,
> permit_sasl_authenticated, reject_unauth_destination,
> reject_unauth_pipelining, reject_non_fqdn_sender,
> reject_non_fqdn_recipient, reject_unknown_recipient_domain,
> reject_invalid_hostname, reject_rbl_client blackholes.easynet.nl,
> reject_rbl_client cbl.abuseat.org, reject_rbl_client bl.spamcop.net,
> reject_rbl_client sbl.spamhaus.org, reject_rbl_client
> opm.blitzed.org, reject_rbl_client dnsbl.njabl.org,
> reject_rbl_client list.dsbl.org, reject_rbl_client multihop.dsbl.org,
BTW, since you are using check_sender_access, this only ever matches
ENVELOPE sender, never which machine is doing the sending.
In addition, putting the check BEFORE reject_unauth_destination with an
OK makes you an open relay for any forged domains in that access file.
Also, opm.blitzed.org and *.dsbl.org are dead, remove those checks to
save a little overhead and possible false positives in the future.