Sendmail configuration as SMTP

[Anubhav Dhingra]

Hi ,
I need to configure sendmail on couple of applications servers to use the SMTP server xx.xx.xx.xx, Authentication none. I believe this can achieved by editing sendmail.cf. please help by providing some steps and explaination on steps.

[James R. Ferguson]

Hi:

To enable the "smart relay" to be able to forward mail to your corporate mail server, edit the 'DS' macro in '/etc/mail/sendmail.cf'.

By default this is empty. Edit it to look like:

# DSmymailserver.xyz.com

Regards!

...JRF...

[Steven E. Protter]

Shalom,

After activating the smart relay feature, take the following steps:

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

Make sure the server you are relaying to accepts relay connections from this server. In most cases that needs to be authorized by IP address.

/var/adm/syslog/mail.log

Is a good file to look at to track diagnostics.

SEP

[Kapil Jha]

If you have submit.cf file, then you may have to edit it as well
DSsmtp.server.address

And you will have to restart sendmail service for the changes to be effective.

BR,
Kapil+

[gb karki]

Hi Anubhav,

Here are the steps to configure sendmail for mail alerts, may be help you.

edit /etc/hosts and add/modify the following entry:
10.11.113.55 nda-lt-egw01.lt.corp.xx.in (exchange server IP and FQDN name)
In /etc/nsswitch.conf add/modify the following entry:
# cat /etc/nsswitch.conf
hosts: files dns [NOTFOUND=return]
In /etc/resolv.conf add/modify the following entry:
search domain xx.in
nameserver 10.11.113.21 (DNS server name)
In /etc/mail/sendmail.cf search for DS and modify as following: (smart relay host)
DSnda-lt-egw01.lt.corp.xx.in
Restart sendmail:
/sbin/init.d/sendmail stop
/sbin/init.d/sendmail start
Test mail: using mail end with .
Run mailq to check the mail queue.


Regards
GB

[Jupinder Bedi]

you can edit sendmail.cf file , look for the entry DS and define your relay server over there

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


Good Luck!!!