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[MTA] Problems using sendmail and exim...



Note: I am sending this email from home.  Please Cc me (thaths@aunet.org)
in your replies.

I run a couple of mailing lists that get pretty decent traffic.  I used to
use Exim as my MTA.  I came across a pretty strage problem using Exim a
couple of weeks ago.  Mails to cyberspace.org started bouncing.  I somehow
managed to exchange a few emails with one of the admins of this service and
they adviced me to move to a different MTA.  

I installed sendmail. Stragely, once I installed sendmail I noticed that
any email to the vsnl.net.in domain started bouncing.  One of the mailing
lists I run is the Linux-india mailing list.  Many people in the
vsnl.net.in domain are subscribed to this list.

I ran a couple of tests and the results are as following:

OS: Debian 2.1 (hamm)
sendmail: 8.9.3-3
exim: 2.05-1


* Sendmail acting as the MTA.  Any mail to the vsnl.net.in domain is
bouncing.

www:~ $ echo "testing.  Please ignore" | sendmail -v 
kvs@blr.vsnl.net.in
Warning: alias database /etc/aliases.db out of date
kvs@blr.vsnl.net.in... Connecting to sbcsmtp1.ptss.com. via esmtp...
220 sbcsmtp1.ptss.com ESMTP Sendmail 8.8.8/8.8.8; Wed, 23 Jun 1999 10:29:03
-070
0 (PDT)
>>> EHLO aunet.org
250-sbcsmtp1.ptss.com Hello aunet.org [216.103.113.202], pleased to meet
you
250-8BITMIME
250-SIZE 16000000
250-DSN
250-ONEX
250-ETRN
250-XUSR
250 HELP
>>> MAIL From:<thaths@aunet.org> SIZE=24
250 <thaths@aunet.org>... Sender ok
>>> RCPT To:<kvs@blr.vsnl.net.in>
553 <kvs@blr.vsnl.net.in>... relay hosting BLOCKED
kvs@blr.vsnl.net.in... User unknown
>>> RSET
250 Reset state
/home/thaths/dead.letter... Saved message in /home/thaths/dead.letter
Closing connection to sbcsmtp1.ptss.com.
>>> QUIT
221 sbcsmtp1.ptss.com closing connection


* Using Exim as MTA.  Mails reach vsnl.net.in fine.  Mails to cyberspace.org
now bouncing.

$ echo "Testing.  Please ignore." | sendmail -v
 kvs@blr.vsnl.net.in
LOG: 0 MAIN
  <= thaths@aunet.org U=thaths P=local S=292
www:~ $ Exim version 2.05 debug level 1 uid=8 gid=8
probably Berkeley DB version 1.8x (native mode)
delivering message 10wrvg-0003mp-00
Connecting to blr.vsnl.net.in [202.54.12.6] ... connected
  SMTP<< 220 blr.vsnl.net.in ESMTP Sendmail 8.9.1a/8.9.1; Thu, 24 Jun 1999
00:06
:12 +0530 (IST)
  SMTP>> EHLO www
  SMTP<< 250-blr.vsnl.net.in Hello aunet.org [216.103.113.202], pleased to
meet 
you 
250-EXPN 
250-VERB 
250-8BITMIME 
250-SIZE 
250-DSN 
250-ONEX 
250-ETRN 
250-XUSR 
250 HELP
  SMTP>> MAIL FROM:<thaths@aunet.org> SIZE=1323
  SMTP<< 250 <thaths@aunet.org>... Sender ok
  SMTP>> RCPT TO:<kvs@blr.vsnl.net.in>
  SMTP<< 250 <kvs@blr.vsnl.net.in>... Recipient ok
  SMTP>> DATA
  SMTP<< 354 Enter mail, end with "." on a line by itself
  SMTP>> writing message and terminating "."
  SMTP<< 250 AAA03580 Message accepted for delivery
  SMTP>> QUIT
LOG: 0 MAIN
  => kvs@blr.vsnl.net.in R=lookuphost T=remote_smtp H=blr.vsnl.net.in
[202.54.12
.6]
LOG: 0 MAIN
  Completed

 $ echo "Testing.  Please ignore." | sendmail -v
 rahul21@cyberspace.org
LOG: 0 MAIN
  <= thaths@aunet.org U=thaths P=local S=295
www:~ $ Exim version 2.05 debug level 1 uid=8 gid=8
probably Berkeley DB version 1.8x (native mode)
delivering message 10wrwF-0003ms-00
Connecting to grex.cyberspace.org [204.212.46.130] ... connected
  SMTP<< 220-grex.cyberspace.org Sendmail 8.6.13/8.6.12 ready at Wed, 23
Jun 199
9 14:40:54 -0400 
220 ESMTP spoken here
  SMTP>> EHLO www
  SMTP<< 250-grex.cyberspace.org Hello aunet.org [216.103.113.202], pleased
to meet you 
250-EXPN 
250-SIZE 100000 
250 HELP
  SMTP>> MAIL FROM:<thaths@aunet.org> SIZE=1326
  SMTP<< 250 <thaths@aunet.org>... Sender ok
  SMTP>> RCPT TO:<rahul21@cyberspace.org>
  SMTP<< 553 <rahul21@cyberspace.org>... One generation passeth away, and
another generation cometh: but the earth abideth for ever.
  SMTP>> QUIT
LOG: 0 MAIN
  ** rahul21@cyberspace.org R=lookuphost T=remote_smtp: SMTP error from
remote m
ailer after RCPT TO: <rahul21@cyberspace.org>: host grex.cyberspace.org
[204.212
.46.130]: 553 <rahul21@cyberspace.org>... One generation passeth away, and
anoth
er generation cometh: but the earth abideth for ever.
Exim version 2.05 debug level 1 uid=8 gid=8
probably Berkeley DB version 1.8x (native mode)
LOG: 0 MAIN
  <= <> R=10wrwF-0003ms-00 U=mail P=local S=1228
LOG: 5 MAIN
  Error message sent to thaths@aunet.org
LOG: 0 MAIN
  Completed
Exim version 2.05 debug level 1 uid=8 gid=8
probably Berkeley DB version 1.8x (native mode)
delivering message 10wrwH-0003mx-00
LOG: 0 MAIN
  => thaths <thaths@aunet.org> D=localuser T=local_delivery
LOG: 0 MAIN
  Completed


What gives?  Would really appreciate help in fixing this under Exim.

Thanks.

Thaths
-- 
"If there were any justice, my face would be on a bunch of crappy
                 merchandise" -- Homer J. Simpson


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