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[PLUG] sendmail "host not found" error
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Hi all,
We're having a bit of trouble getting our sendmail server up and running.
We're using an unmodified fresh install of RedHat 6.2 with their
prepackaged Sendmail version 8.9.3.
My question is, does sendmail require a valid DNS record to operate
correctly? Should not sending an email directly to user@ip_address work?
We currently do not have any DNS record for this network.
When sending mail from an external mail account (this drexel account) to
user@www.xxx.yyy.zzz, sendmail logs in /var/log/maillog where
www.xxx.yyy.zzz is the routable IP address of our machine.
Jan 11 10:41:14 mail sendmail[701]: KAA00701: from=<st96d92z@drexel.edu>,
size=622, class=0, pri=30622, nrcpts=1, msgid$
Jan 11 10:42:17 mail sendmail[703]: KAA00701: to=<agent@www.xxx.yyy.zzz>,
delay=00:01:12, xdelay=00:01:03, mailer=esmtp, r$
Jan 11 10:42:17 mail sendmail[703]: KAA00701: KAA00703: DSN: Host unknown
(Name server: www.xxx.yyy.zzz: host not found)
The email is then returned with the following error.
----------------------------------------
The original message was received at Thu, 11 Jan 2001 10:41:05 -0500
from mail.drexel.edu [129.25.3.58]
----- The following addresses had permanent fatal errors -----
<agent@www.xxx.yyy.zzz>
----- Transcript of session follows -----
550 <agent@www.xxx.yyy.zzz>... Host unknown (Name server: www.xxx.yyy.zzz:
host not found)
[ Part 2: "Delivery Status" ]
Reporting-MTA: dns; mail.digapp.com
Received-From-MTA: DNS; mail.drexel.edu
Arrival-Date: Thu, 11 Jan 2001 10:41:05 -0500
Original-Recipient: rfc822;agent@www.xxx.yyy.zzz
Final-Recipient: RFC822; agent@www.xxx.yyy.zzz
Action: failed
Status: 5.1.2
Remote-MTA: DNS; www.xxx.yyy.zzz
Last-Attempt-Date: Thu, 11 Jan 2001 10:42:17 -0500
[ Part 3: "Included Message" ]
Date: Thu, 11 Jan 2001 10:33:07 -0500 (EST)
From: Eric Cunningham <st96d92z@drexel.edu>
To: agent@www.xxx.yyy.zzz
Subject: incoming mail test 10:40 1/11/01
incoming mail test
10:40
1/11/01
--------------------------------------------
...and for completeness, our /etc/hosts file:
127.0.0.1 localhost.localdomain localhost
www.xxx.yyy.zzz mail.our_domain.domain mail
I hope that wasn't too long. I can't be sure what's useful and what's
garbage. Thanks in advance for any help.
-eric
______________________________________________________________________
Philadelphia Linux Users Group - http://www.phillylinux.org
Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce
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