Hello, one of my clients has a server running Debian Lenny, postfix,
postgresql, dovecot, and postfixadmin.
Everything's been working fine, until a week ago, when messages like the
following started showing up in mail.log (with real values where
hostname, obfuscated, domain, and fqdn occur).
Feb 22 19:31:13 hostname postfix/smtp[13576]: 367A41B2090:
to=<obfusca...@domain.com>, relay=none, delay=20, delays=0.21/0.01/20/0,
dsn=4.4.3, status=deferred (Host or domain name not found. Name service
error for name=domain.com type=MX: Host not found, try again)
the output of hostname and hostname -f commands show the proper hostname
and fqdn
/etc/hosts has the following ten lines
127.0.0.1 localhost
192.168.0.120 fqdn hostname
# 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
/etc/resolv.conf has chmod permissions of 644 and the following two lines
nameserver 205.171.3.65
nameserver 205.171.2.65
I have pinged both of these servers, and nmap shows port 53 open on both
servers, and dig is giving me good answers for the domains in the above
log file messages.
I have not set up chroot jails (unless the Debian package has it already
done???).
Not sure where else to look....
Thanks,
--
Jeff Orrok
LXVI Internet Services LLC
866-598-4638
