Name server timeout and I/O error

[Kai Wang]

Hello,

We run MailScanner 4.12-2 and sendmail 8.11.6. I noticed we have
many I/O error on our MailScanner server. I did some investigation.
It seems that sendmail checks the domain names in the data part of
the message. Is there a way to disable this kind of checking?



[root at mhub2 mqueue]# time /usr/sbin/sendmail -v -qIh1GNRAw02189

Running /var/spool/mqueue/h1GNRAw02189 (sequence 1 of 1)
<UNAME2 at ucalgary.ca>... Connecting to mr1.ucalgary.ca. via relay...
220 mr1.ucalgary.ca ESMTP Postfix
>>> EHLO mhub2.ucalgary.ca
250-mr1.ucalgary.ca
250-PIPELINING
250-SIZE 61440000
250-ETRN
250-XVERP
250 8BITMIME
>>> MAIL From:<UNAME1 at telus.net> SIZE=18392
250 Ok
>>> RCPT To:<UNAME2 at ucalgary.ca>
250 Ok
>>> DATA
354 End data with <CR><LF>.<CR><LF>
evolution.optdeals.com: Name server timeout
I/O error
Closing connection to mr1.ucalgary.ca.

real    3m44.565s
user    0m0.010s
sys     0m0.010s
[root at mhub2 mqueue]# less qfh1GNRAw02189
V4
T1045438030
K1045683344
N1271
P114563178
I8/7/32232
MI/O error: Input/output error
Fwb
$_mserve4.acs.ucalgary.ca [136.159.34.57]
$rESMTP
$sucalgary.ca
${daemon_flags}
${if_addr}136.159.34.162
S<UNAME1 at telus.net>
RPFD:<UNAME2 at ucalgary.ca>
H?P?Return-Path: <<81>g>
H??Received: from ucalgary.ca (mserve4.acs.ucalgary.ca [136.159.34.57])
        by mhub1.ucalgary.ca (8.11.6/8.11.6) with ESMTP id h1GNRAw02189
        for <UNAME2 at ucalgary.ca>; Sun, 16 Feb 2003 16:27:10 -0700
H??Received: from outbound01.telus.net(199.185.220.220) by
mserve4.acs.ucalgary.ca via smap (V2.0)
        id ZZ167130; Sun, 16 Feb 2003 16:26:58 -0700
H??Received: from Fpd ([66.222.233.176]) by
priv-edtnes61.telusplanet.net
          (InterMail vM.5.01.05.17 201-253-122-126-117-20021021) with
SMTP
          id
<20030216232654.HSNF15786.priv-edtnes61.telusplanet.net at Fpd>
          for <UNAME2 at ucalgary.ca>; Sun, 16 Feb 2003 16:26:54 -0700
H??From: UNAME3 <UNAME3 at evolution.optdeals.com>
H??To: UNAME2 at ucalgary.ca
H??Subject: {Virus?} A  IE 6.0 patch
H??MIME-Version: 1.0
H??Content-type: multipart/mixed; boundary="Qp0eXY28L6btnm994g"
H??Message-Id:
<20030216232654.HSNF15786.priv-edtnes61.telusplanet.net at Fpd>
H??Date: Sun, 16 Feb 2003 16:26:57 -0700
H??X-MailScanner: Found to be infected
H??X-MailScanner-Information: Please contact IT Help Desk at (403)
220-5555 for more information
.



Thanks
Kai Wang