WHM Exim Does Not Refuse Emails During SMTP With :fail:
Feb 7, 2008
running WHM at Fedora 6... WHM 11.11.0 cPanel 11.16.0-R18546
I have a problem with spoofing spammers.. my queue is plenty of non-delivered emails from externals SMTP, sended to NON-existents address on my server...
The question is the destination domain (mydomain.com b.example) has already its ":fail: No Such User Here" alias.
SMF records applied, but not the most external SMTP servers checks them nowadays...
Using :fail: the email is never accepted into the server. During the initial SMTP negotiation when the senders SMTP server connects to your SMTP server, the sending SMTP server issues a RCPT command notifying your server which email address the email to follow is intended for. Your server then checks whether the recipient email actually exists on your server (a POP3 account, an alias or a catchall alias) and if it does not, it issues an SMTP DENY which terminates the attempt to deliver the email.
Well, in my case it justs receives message and then frozen it!
Some more data:
IN MY QUEUE:
1JMoh4-0004UG-Pz-H
mailnull 47 12
<>
1202321302 0
-helo_name luatvietnam.vn
-host_address 203.162.168.16.1839
-interface_address 85.x.x.x.25
-received_protocol smtp
-body_linecount 50
-max_received_linelength 93
-frozen 1202407547
-host_lookup_failed
-manual_thaw
XX
1
dlsex-ireddols@abrasivoshermes.com
210P Received: from [203.162.168.16] (port=1839 helo=luatvietnam.vn)
by myserver.mine.com with smtp (Exim 4.68)
id 1JMoh4-0004UG-Pz
for dlsex-ireddols@mydomain.com; Wed, 06 Feb 2008 19:08:23 +0100
069P Received: (qmail 6913 invoked for bounce); 5 Feb 2008 09:04:11 -0500
032 Date: 5 Feb 2008 09:04:11 -0500
032F From: postmaster@luatvietnam.vn
039T To: dlsex-ireddols@mydomain.com
024 Subject: failure notice
WHEN TRYING TO DELIVER FROM QUEUE:
Message 1JMoh4-0004UG-Pz is no longer frozen
LOG: MAIN
cwd=/usr/local/cpanel/whostmgr/docroot 4 args: /usr/sbin/exim -v -M 1JMoh4-0004UG-Pz
delivering 1JMoh4-0004UG-Pz
LOG: MAIN
** dlsex-ireddols@mydomain.com F=<> R=virtual_aliases: No Such User Here
LOG: MAIN
Frozen (delivery error message)
AT LOGS (first time):
2008-02-06 19:08:17 SMTP connection from [203.162.168.16]:1839 I=[85.112.9.44]:25 (TCP/IP connection count = 9)
2008-02-06 19:08:20 no host name found for IP address 203.162.168.16
2008-02-06 19:08:22 H=(luatvietnam.vn) [203.162.168.16]:1839 I=[85.x.x.x]:25 Warning: Sender rate 0.0 / 1h
2008-02-06 19:08:23 1JMoh4-0004UG-Pz <= <> H=(luatvietnam.vn) [203.162.168.16]:1839 I=[85.x.x.x]:25 P=smtp S=2405 T="failure notice" from <> for dlsex-ireddols@mydomain.com
2008-02-06 19:08:23 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1JMoh4-0004UG-Pz
2008-02-06 19:08:23 1JMoh4-0004UG-Pz ** dlsex-ireddols@mydomain.com F=<> R=virtual_aliases: No Such User Here
2008-02-06 19:08:23 1JMoh4-0004UG-Pz Frozen (delivery error message)
2008-02-06 19:08:24 SMTP connection from (luatvietnam.vn) [203.162.168.16]:1839 I=[85.x.x.x]:25 closed by QUIT
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2007-11-19 04:41:01 no IP address found for host 202.57.142.156.sta.isp-thailand.com (during SMTP connection from [202.57.142.156])
2007-11-19 04:41:04 no IP address found for host 202.57.142.156.sta.isp-thailand.com (during SMTP connection from [202.57.142.156])
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2007-11-19 04:41:49 1ItxNu-0007E6-4s == hmt@someaddress.com <HMT@someaddress.com> R=lookuphost T=remote_smtp defer (110): Connection timed out
2007-11-19 04:41:49 1ItxNu-0007E6-4s == jog@someaddress.com <JOG@someaddress.com> R=lookuphost T=remote_smtp defer (110): Connection timed out
2007-11-19 04:41:49 1ItxNu-0007E6-4s == mrl@someaddress.com <MRL@someaddress.com> R=lookuphost T=remote_smtp defer (110): Connection timed out
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PHP Code:
if error_message then finish endif
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PHP Code:
if $sender_address contains "@domain1.com"
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PHP Code:
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