Package: postfix
Version: 2.8.1-1
Severity: normal
After today's daily upgrade in Sid no email could be sent. The
'mailq' command shows this output:
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
81CB02DC4D 1313 Wed Feb 23 13:22:36 b...@proulx.com
(Host or domain name not found. Name service error for name=mail type=A: Host
not found)
r...@example.com
The mail.log started logging these messages:
Feb 23 13:22:36 hysteria postfix/smtp[18670]: warning: relayhost
configuration problem
My relayhost configuration is:
$ postconf relayhost
relayhost = [mail]
$ host -t a mail
mail.proulx.com has address 192.168.9.3
This is a configuration that has been working for quite a few years.
It appears that something has changed and relayhost is no longer able
to lookup relayhost names.
I checked /usr/share/doc/postfix/NEWS.Debian.gz and the changelogs but
saw nothing that appeared to me to be related to this problem. I
could have missed something obvious though. What am I missing?
Changing that to the IP address as follows worked around the problem
and enabled email to flow again. Further experiment showed that it
was the domain search that was causing the problem because the next
three configurations were also successfully able to send email.
relayhost = [192.168.230.3]
relayhost = [mail.proulx.com]
relayhost = [mail.$mydomain]
Both of those worked. The last (mail.$mydomain) is an acceptable
workaround for me. But a simple "mail" without a domain name
expecting the domain search to be used to find the host failed. Until
today the simple hostname without a domain name has always been
successful and achieved the same effect.
Other things that may be related in the environment: My system has
bind9 installed as a local nameserver and /etc/resolv.conf contains:
nameserver 127.0.0.1
search proulx.com
I checked /var/spool/postfix/etc/resolv.conf and verified that it
contained the same information.
Thank you for maintaining Postfix!
Bob
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.37-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
