issue with Sending mail

7 posts / 0 new

Topic locked

Last post

#1 Mon, 03/29/2010 - 02:34

anwoke8204

issue with Sending mail

Hi, anytime somone sends us an email, it gets kicked back with the following error:

mail for gordon loops back to myself

here is whats in the details.txt file

Reporting-MTA: dns; gordon.atiptopcomputer.com X-Postfix-Queue-ID: 6B0691222AA X-Postfix-Sender: rfc822; **************@gmail.com Arrival-Date: Mon, 29 Mar 2010 01:29:25 -0600 (MDT)

Final-Recipient: rfc822; *********** Original-Recipient: rfc822**************** Action: failed Status: 5.4.6 Diagnostic-Code: X-Postfix; mail for gordon loops back to myself

How can I resolve this?

Many thanks

#2 Mon, 03/29/2010 - 09:17

andreychek

Howdy,

Something like that can happen if Postfix gets confused as to whether it's actually the final destination for your email.

You may want to make sure of a few things:

Set your hostname to an actual "FQDN" -- something like "gordon.atiptopcomputer.com" rather than just "gordon". You can check/set that with the "hostname" command on the command line.
Whatever your hostname is set to, make sure that appears next to your IP address in /etc/hosts
Also make sure that your hostname is listed in the mydestination line of /etc/postfix/main.cf.

-Eric

#3 Mon, 03/29/2010 - 20:52

anwoke8204

I tried those and am still getting the issue, any other ideas?

#4 Mon, 03/29/2010 - 21:50

andreychek

Hrm, something about that error message is fishy.

Just for fun, could you paste in the output for the following:

Output of the command: hostname
Contents of /etc/hosts
Output of "postconf -n"

Thanks!

-Eric

#5 Mon, 03/29/2010 - 21:54

anwoke8204

output of hostname is: gordon.atiptopcomputer.com

/etc/hosts is

127.0.0.1 localhost 10.32.64.13 gordon gordon

The following lines are desirable for IPv6 capable hosts

::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts

postconf -n output:

alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix home_mailbox = Maildir/ inet_interfaces = all mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME mailbox_size_limit = 0 mydestination = gordon.atiptopcomputer.com, localhost.atiptopcomputer.com, , localhost myhostname = gordon.atiptopcomputer.com mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 myorigin = /etc/mailname readme_directory = no recipient_delimiter = + relayhost = sender_bcc_maps = hash:/etc/postfix/bcc smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes virtual_alias_maps = hash:/etc/postfix/virtual

#6 Mon, 03/29/2010 - 22:01

andreychek

Aha!

This /etc/hosts entry is your problem:

10.32.64.13 gordon gordon

Your hostname isn't gordon, it's "gordon.atiptopcomputer.com". So Postfix is getting confused.

Try changing that line to read:

10.32.64.13 gordon.atiptopcomputer.com gordon

#7 Mon, 03/29/2010 - 22:06

anwoke8204

made that change and still doing the same thing

Topic locked