 | | | Notifications email failure | Notifications email failure 2005-08-29 - By Thomas Cameron
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> Greetings -
>
> I am a novice network manager for a small office network running a RHEL 3
> server on a Dell PE2600. The server is used primarily as a Samba server
> for
> about 10 Windows clients. It is not used as a mail server or web server
> (our mail is delivered via POP3 from a 3rd party provider). I am aware
> that
> several of the administrative programs (e.g., tape backup, Dell OMSA, UPS
> battery management tool, etc.) on my server send email notifications to
> root
> when conditional events occur. I have root's email set up to be
> redirected
> to my email address, yet since I have not received any emails I am
> assuming
> that I don't have something properly configured. I generally have most
> services turned off that are not necessary for our local network. The
> maillog
> file indicates that it is unable to resolve where the email is to be sent.
> When I
> check running processes on our server it shows that Named is currently
> running, but checking the BindDNS service through Webmin gives the
> following
> message.
>
> The primary configuration file for BIND /var/named/chroot/etc/named.conf
> does not exist, or is not valid. Create it?
>
> Below are the messages from the /var/log/maillog file indicating the
> attempts to send the email notifications.
>
> Aug 17 01:38:01 bison sendmail[20314]: My unqualified host name (bison)
> unknown; sleeping for retry
>
> Aug 17 01:39:01 bison sendmail[20314]: unable to qualify my own domain
> name
> (bison) -- using short name
>
> Aug 17 01:39:02 bison sendmail[20314]: j7H8d1XK020314: from=root,
> size=1337,
> class=0, nrcpts=1, msgid=<200508170839.j7H8d1XK020314@(protected)>,
> relay=root@(protected)
>
> Aug 17 01:39:02 bison sendmail[20314]: j7H8d1XK020314:
> to=jboyce@(protected), ctladdr=root (0/0), delay=00:00:01,
> xdelay=00:00:00, mailer=relay, pri=31337, relay=[127.0.0.1] [127.0.0.1],
> dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1]
>
> Aug 17 04:02:03 bison sendmail[20584]: My unqualified host name (bison)
> unknown; sleeping for retry
>
> Aug 17 04:03:03 bison sendmail[20584]: unable to qualify my own domain
> name
> (bison) -- using short name
>
> Aug 17 04:03:03 bison sendmail[20584]: j7HB33cm020584: from=root,
> size=5002,
> class=0, nrcpts=1, msgid=<200508171103.j7HB33cm020584@(protected)>,
> relay=root@(protected)
>
> Aug 17 04:03:03 bison sendmail[20584]: j7HB33cm020584: to=root,
> ctladdr=root
> (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=35002,
> relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection
> refused
> by [127.0.0.1]
>
> My /etc/hosts file shows the following information. Workstations 105 and
> 100 are listed for proper operation of a network tape backup.
>
> 127.0.0.1 localhost.localdomain localhost
> 192.168.112.1 bison
> 192.168.112.105 jeff
> 192.168.112.100 pamk
>
> I am assuming that there is probably a simple solution to this problem,
> but
> I am not sure how to interpret the maillog messages. What additional
> configuration changes do I need to make to receive the notification
> emails?
Sounds like your sendmail config is set to reject mail from hosts whose
names do not resolve in DNS (i.e. www.example.com). You machine's name
(bison) does not resolve in DNS.
What does your /etc/mail/sendmail.mc look like?
Thomas
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