sendmail using wrong hostname

schentor · 12-08-2005, 02:52 PM

I maintain a server on a LAN that is having problems with sendmail. The daily logwatch emails sent to root are sometimes returned because of an incorrectly spelled hostname. Other times they get through, and the hostname in the headers look fine. When I send emails from pine, they always go through correctly. However, in all situations /var/log/maillog misspells the hostname. The hostname listed in /etc/hosts and /etc/sysconfig/network is correct. Can someone help with this? Thanks in advance.

The returned email:

Code:

Subject:
Returned mail: see transcript for details
From:
Mail Delivery Subsystem <MAILER-DAEMON@sallly.network.com>
Date:
Thu, 8 Dec 2005 04:17:35 -0800
To:
root@sallly.network.com
X-Account-Key:
account4
X-UIDL:
@D3!!,Be"!"o6!!-2_!!
X-Mozilla-Status:
0001
X-Mozilla-Status2:
10000000
Received:
from sallly.network.com (sally.network.com [xxx.xxx.xxx.xxx]) by mailserver.network.com (8.12.10/8.12.10) with ESMTP id jB8CHZ60024468 for <schen@network.com>; Thu, 8 Dec 2005 04:17:35 -0800 (PST)
Received:
from localhost (localhost) by sallly.network.com (8.11.6/8.11.6) id jB8CHZi20209; Thu, 8 Dec 2005 04:17:35 -0800
Message-ID:
<200512081217.jB8CHZi20209@sallly.network.com>
MIME-Version:
1.0
Auto-Submitted:
auto-generated (failure)
X-Spam-Checker-Version:
SpamAssassin 2.63 (2004-01-11) on dagalas
X-Spam-Level:
*
X-Spam-Status:
No, hits=1.1 required=5.0 tests=NO_DNS_FOR_FROM autolearn=no version=2.63
X-network.com-MailScanner-Information:
Please contact the ISP for more information
X-network.com-MailScanner:
Found to be clean
Content-Type:
multipart/report; report-type=delivery-status; boundary="jB8CHZi20209.1134044255/sallly.network.com"
X-UIDL:
@D3!!,Be"!"o6!!-2_!!

The original message was received at Thu, 8 Dec 2005 04:02:01 -0800
from root@localhost

   ----- The following addresses had permanent fatal errors -----
schen@network.com
    (reason: 553 5.1.8 <root@sallly.network.com>... Domain of sender address root@sallly.network.com does not exist)
    (expanded from: root)

   ----- Transcript of session follows -----
... while talking to mail.network.com.:

>>>>>> MAIL From:<root@sallly.network.com> SIZE=312

<<< 553 5.1.8 <root@sallly.network.com>... Domain of sender address root@sallly.network.com does not exist
501 5.6.0 Data format error

Reporting-MTA: dns; sallly.network.com
Arrival-Date: Thu, 8 Dec 2005 04:02:01 -0800

Final-Recipient: RFC822; root@sallly.network.com
X-Actual-Recipient: RFC822; schen@network.com
Action: failed
Status: 5.1.8
Diagnostic-Code: SMTP; 553 5.1.8 <root@sallly.network.com>... Domain of sender address root@sallly.network.com does not exist
Last-Attempt-Date: Thu, 8 Dec 2005 04:17:35 -0800

Subject:
LogWatch for sally
From:
root <root>
Date:
Thu, 8 Dec 2005 04:02:01 -0800
To:
root
Return-Path:
<root>
Received:
(from root@localhost) by sally.network.com (8.11.6/8.11.6) id jB8C21D19511 for root; Thu, 8 Dec 2005 04:02:01 -0800
Message-ID:
<200512081202.jB8C21D19511@sally.network.com>

 ################## LogWatch 2.6 Begin ##################### 

 --------------------- sendmail Begin ------------------------ 

6095 bytes transferred
2 messages sent
 ---------------------- sendmail End ------------------------- 

 ###################### LogWatch End ######################### 

Part 1.2

Content-Type:
	message/delivery-status

LogWatch for sally.eml

Content-Type:
	message/rfc822

The correct hostname is sally, but sendmail thinks it's sallly. I've replaced the real domain with network.com.

Finlay · 12-08-2005, 05:10 PM

if you type:
hostname
what do you get?

schentor · 12-08-2005, 05:27 PM

Quote:

Originally Posted by Finlay

if you type:
hostname
what do you get?

I get the correct hostname, 'sally' with two l's.

Finlay · 12-08-2005, 05:33 PM

did you generate your own sendmail.cf file?

what do you get when you type:

cat /proc/sys/kernel/hostname

schentor · 12-08-2005, 05:59 PM

cat /proc/sys/kernel/hostname gives the correct hostname. I don't know how sendmail.cf was generated, since sendmail was already set up when I started administrating this machine.

KnightHawk · 12-08-2005, 08:08 PM

check your /etc/mail/local-mailer-table

Its probably spelled wrong in there. With sendmail using the hostname as the "domain" is only the default action when the domain is not spelled out with the "Cw" directive either via the cf file or a local-mailer-table.

schentor · 12-09-2005, 02:53 PM

This computer doesn't have /etc/mail/local-mailer-table. It did have blank file named /etc/mail/mailertable. I tried putting this line:
sally.gps.caltech.edu smtp:sally.gps.caltech.edu
in it and re-generated mailer-table.db and restarted sendmail, but the mail log is still displaying the wrong hostname. I couldn't find any mention of the incorrect hostname, "sallly", in /etc/sendmail.cf or in any of the files in /etc/mail.