Sendmail Problem - host name lookup failure

[Robert C. Dunavent]

msphbos0ROOT:telnet bagate.verizon.com 25
Trying...
Connected to bagate.verizon.com.
Escape character is '^]'.
220 smtpirv2.verizon.com ESMTP Sendmail 8.13.3/8.13.3; Thu, 23 Jul 2009 09:05:28 -0500 (CDT)


============================================

msphnyc1ROOT:telnet bagate.verizon.com 25
Trying...
Connected to bagate.verizon.com.
Escape character is '^]'.
220 smtpirv2.verizon.com ESMTP Sendmail 8.13.3/8.13.3; Thu, 23 Jul 2009 09:05:32 -0500 (CDT)

[Mel Burslan]

one more test please:

echo test | sendmail -v you@someplace.com

please post the detailed output of this command. It is very strange that you have access to mail relay and still not able to send mail.

[Robert C. Dunavent]

msphbos0ROOT:echo test | sendmail -v you@someplace.com
you@someplace.com... Connecting to bagate.verizon.com via relay...
220 smtpirv2.verizon.com ESMTP Sendmail 8.13.3/8.13.3; Thu, 23 Jul 2009 09:32:28 -0500 (CDT)
>>> EHLO msphbos0.verizon.com
250-smtpirv2.verizon.com Hello [172.26.46.12], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE 50000000
250-DSN
250-DELIVERBY
250 HELP
>>> MAIL From: SIZE=5
250 2.1.0 ... Sender ok
>>> RCPT To:
250 2.1.5 ... Recipient ok
>>> DATA
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 n6NEWSZB027086 Message accepted for delivery
you@someplace.com... Sent (2.0.0 n6NEWSZB027086 Message accepted for delivery)
Closing connection to bagate.verizon.com
>>> QUIT
221 2.0.0 smtpirv2.verizon.com closing connection

=========================================


msphnyc1ROOT:echo test | sendmail -v you@someplace.com
you@someplace.com... Deferred: Name server: bagate.verizon.com: host name lookup failure

[Mel Burslan]

it is obvious from the combination of messages above that "name lookup failure" message is bogus as far as the OS goes. On the other hand upon a little more careful reading of your previous messages, I have noticed you do not have any sendmail cumulative patch on the NY server, which might be the cause of your woes.

Since hpux 10.20 is out of support now, I am not sure if you can find this patch somewhere but, almost certainly you will need it. Try digging up your old patch CD's and tapes and try to locate a sendmail cumulative patch and then apply it.

[Vinod Kumar Yadav]

Hi,

In the most environments a smtp relay server is provided for send a email.

You take the IP address or host name of the server for accept mail from your server then.

Edit /etc/mail/sendmail.cf

Change DS to:

DSname_of_smtp_relay_server

or

DSIP address of smtp relay server

ex

DS telcon.co.in

/sbin/init.d/sendmail stop
/sbin/init.d.sendmail start

Then check few thing for sending the mail sucessfully.

Check the permission of the files related sendmail /var/spool/mqueue or check the
/etc/resolv.conf & Please check the sendmail services running.

root # ps -ef | grep -i sendmail
root 1700 1 0 Jul 11 ? 0:04 sendmail: accepting connections
root 29011 23487 0 16:13:46 pts/tb 0:00 grep -i sendmail

root # ls -ld /var/spool/mqueue
drwxr-xr-x 2 root bin 1024 Jul 13 16:13 /var/spool/mqueue

root # ls -ld resolv.conf
-rw-r--r-- 1 root sys 110 Jun 16 2007 resolv.conf

Try with Permission send mail & check the log /var/adm/syslog/mail.log


Thanks
Vinod Kumar Yadav