From: Steve Postma (spostmatravizon.com)
Date: Fri Sep 02 2005 - 10:13:53 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
 
 
It appears that the domain had an MX record that pointed to a server
with both an ip4 record and an ip6 record. The ip6 record was all zeros,
and appears to take precedence over the ip4, even tho both are returned.
I have added the ip4 address of the server to my hosts file, and that
seems to take care of the problem. What would be the proper way to
resolve this?
 
-----Original Message-----
From: Steve Postma
Sent: Friday, September 02, 2005 7:47 AM
To: 'postfix-userspostfix.org'
Subject: loop
 
I have a postfix server that was installed along with CentoOS, postfix
version 2.1.5. I have two email domains that I am receiving the error
message "mailport.travizon.com #5.0.0 X-Postfix; mail for
usplayingcard.com loops back to myself" When I try to send mail to them.
 
These are external domains, I have no virtual domains. If I run a
sniffer, I can see it make a dns request, get the proper IP back in
response, and then it does a ptr record lookup that fails.The config is
below, any help would be appreciated!
 
 
Log for failed mail:
Sep 1 15:36:30 localhost postfix/smtpd[17079]: connect from
unknown[10.5.75.8]
Sep 1 15:36:30 localhost postfix/smtpd[17079]: 1366B68033:
client=unknown[10.5.75.8]
Sep 1 15:36:30 localhost postfix/cleanup[17081]: 1366B68033:
message-id=000801c5af2b$0ca435f0$084b050afugazy.com
Sep 1 15:36:30 localhost postfix/qmgr[17073]: 1366B68033:
from=<testtravizon.com>, size=1338, nrcpt=1 (queue active)
Sep 1 15:36:30 localhost postfix/smtpd[17079]: disconnect from
unknown[10.5.75.8]
Sep 1 15:36:30 localhost postfix/smtpd[17079]: connect from
unknown[::1]
Sep 1 15:36:30 localhost postfix/smtp[17077]: warning: host
mail.usplayingcard.com[::] greeted me with my own hostname
mailport.fugazy.com
Sep 1 15:36:30 localhost postfix/smtp[17077]: warning: host
mail.usplayingcard.com[::] replied to HELO/EHLO with my own hostname
mailport.fugazy.com
Sep 1 15:36:30 localhost postfix/smtp[17077]: 1366B68033:
to=<testusplayingcard.com>, relay=mail.usplayingcard.com[::], delay=0,
status=bounced (mail for usplayingcard.com loops back to myself)
Sep 1 15:36:30 localhost postfix/smtpd[17079]: lost connection after
EHLO from unknown[::1] Sep 1 15:36:30 localhost postfix/smtpd[17079]:
disconnect from unknown[::1]
Sep 1 15:36:30 localhost postfix/cleanup[17081]: 4558A68034:
message-id=<20050901193630.4558A68034mailport.fugazy.com>
Sep 1 15:36:30 localhost postfix/qmgr[17073]: 4558A68034: from=<>,
size=3049, nrcpt=1 (queue active)
Sep 1 15:36:30 localhost postfix/qmgr[17073]: 1366B68033: removed Sep
1 15:36:30 localhost postfix/smtp[17076]: 4558A68034:
to=<testtravizon.com>, relay=192.168.5.52[192.168.5.52], delay=0,
status=sent (250 2.6.0<20050901193630.4558A68034mailport.fugazy.com>
Queued mail for delivery)
Sep 1 15:36:30 localhost postfix/qmgr[17073]: 4558A68034: removed
 
 
 
bounce_queue_lifetime = 4h
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
html_directory = no
inet_interfaces = all
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
maximal_queue_lifetime = 4h
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = fugazy.com
myhostname = mailport.fugazy.com
mynetworks = xxx.xxx.xxx, xxx.xxx.xxx, xxx.xxx.xxx, xxx.xxx.xxx,
xxx.xxx.xxx, xxx.xxx.xxx, xxx.xxx.xxx, xxx.xxx.xxx, xxx.xxx.xxx,
xxx.xxx.xxx, xxx.xxx.xxx,
Note - does not include ip range of failed domain
myorigin = travizon.com
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.1.5/README_FILES
relay_domains = travizon.com, travizon.net, travizon.org, necccorp.com,
apatravel.com,
sample_directory = /usr/share/doc/postfix-2.1.5/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550
 
 
 
 
 
 
Thank You!
 
  ________________________________________
Steve Postma
Systems Administrator
781-994-1200
spostmatravizon.com <mailto:spostmatravizon.com>
Travizon, Inc. | Working to Bring People Together
http://www.travizon.com <http://www.travizon.com/>
 
 

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]