topic Re: unable to sendmail in Operating System - Linux

unable to sendmail

Sridhar R — Sun, 27 Apr 2008 07:26:49 GMT

Hi,

I am unable to sendmail to my local domain.

Let me tell u in a detailed manner:

Domain Name: ashokleyland.com

I have edited the /etc/mailsendmail.cf file and added the domain and uncommented.

My /etc/resolv.conf is:

vorap101#cat /etc/resolv.conf
domain ashokleyland.com
nameserver 10.200.221.1

And the sendmail fails with:

vorap101#echo test | sendmail -v sridhar.hp@ashokleyland.com
sridhar.hp@ashokleyland.com... Connecting to mailrelay via relay...
sridhar.hp@ashokleyland.com... Deferred: Name server: mailrelay: host name lookup failure
Closing connection to mailrelay

And the logs (/var/adm/syslog/mail.log) shows up as follows:

Apr 27 13:52:14 vorap101 sendmail[3966]: m3R8MEL03966: from=root, size=5, class=0, nrcpts=1, msgid=<200804270822.m3R8MEL03966@vorap101.ashokleyland.com>, relay=root@localhost
Apr 27 13:52:48 vorap101 sendmail[3966]: m3R8MEL03966: to=sridhar.hp@ashokleyland.com, ctladdr=root (0/3), delay=00:00:34, xdelay=00:00:34, mailer=relay, pri=30005, relay=mailrelay [10.1.220.2], dsn=4.0.0, stat=Deferred: Name server: mailrelay: host name lookup failure

And the mailq output is:

vorap101#mailq
/var/spool/mqueue (7 requests)
----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
m3R89gd03782 5 Sun Apr 27 13:39 root
(reply: read error from mailrelay)
sridhar.hp@ashokleyland.com
m3R8MEL03966 5 Sun Apr 27 13:52 root
(reply: read error from mailrelay)
sridhar.hp@ashokleyland.com
m3R7cun03416 10 Sun Apr 27 13:08 root
(host map: lookup (ashokleyland.com): deferred)
sridhar.hp@ashokleyland.com
m3R8BxN03832 10 Sun Apr 27 13:41 root
(reply: read error from mailrelay)
sridhar.hp@ashokleyland.com
m3R8F0503858 10 Sun Apr 27 13:45 root
(reply: read error from mailrelay)
sridhar.hp@ashokleyland.com
m3R7Eh908741 10 Sun Apr 27 12:44 root
(host map: lookup (ashokleyland.com): deferred)
sridhar.hp@ashokleyland.com
m3R7LBU08825 12 Sun Apr 27 12:51 root
(host map: lookup (ashokleyland.com): deferred)
sridhar.hp@ashokleyland.com
vorap101#

Kindly tell me what couls be done for this?

Thanks in Advance!!

Sridhar

Re: unable to sendmail

Sridhar R — Sun, 27 Apr 2008 07:28:36 GMT

My /etc/hosts file looks like:

vorap101#cat /etc/hosts
## Configured using SAM by root on Mon Aug 6 16:00:53 2007
## Configured using SAM by root on Mon Aug 6 16:00:42 2007
# @(#)B11.23_LRhosts $Revision: 1.9.214.1 $ $Date: 96/10/08 13:20:01 $
#
# The form for each entry is:
#
#
# For example:
# 192.1.2.34 hpfcrm loghost
#
# See the hosts(4) manual page for more information.
# Note: The entries cannot be preceded by a space.
# The format described in this file is the correct format.
# The original Berkeley manual page contains an error in
# the format description.
#

10.200.227.61 vorap101.ashokleyland.com vorap101
10.200.227.62 cdbap101.ashokleyland.com cdbap101
10.200.227.63 wwwap101.ashokleyland.com wwwap101
10.200.227.64 scmap101.ashokleyland.com scmap101
10.200.226.50 dmzbd101.ashokleyland.com dmzdb101
10.200.226.21 cbadb101.ashokleyland.com cbadb101
10.200.226.22 cbadb102.ashokleyland.com cbadb102
10.200.226.23 cbadb103.ashokleyland.com cbadb103
10.1.220.2 mailrelay.ashokleyland.com mailrelay
127.0.0.1 localhost loopback

Re: unable to sendmail

Vitaly Karasik_1 — Sun, 27 Apr 2008 08:31:22 GMT

Sridhar,

Before test sendmail you should configure DNS for ashokleyland.com.
You should be able to get MX record for ashokleyland.com:

#host -t mx ashokleyland.com

Re: unable to sendmail

Ivan Ferreira — Sun, 27 Apr 2008 13:34:02 GMT

Sendmail won't lookup into the /etc/hosts table. Edit your sendmail configuration file and replace mailrelay with it's real ip address enclosed by brackets, like this [10.1.220.2].

This will tell sendmail to contact directly to that IP address and avoid DNS lookups.

Re: unable to sendmail

Aashique — Mon, 28 Apr 2008 13:54:02 GMT

Hi,
check your DNS is woring or not.
check your access file.

Thanks & Regards
Aashique

Re: unable to sendmail

Aashique — Mon, 28 Apr 2008 13:54:15 GMT

Hi,
check your DNS is working or not.
check your access file.

Thanks & Regards
Aashique