LinuxQuestions.org - [SOLVED] mail configuration related query.

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mail configuration related query.

How do i configure my linux machine to send mail.

I have two server out of which one is configured to send mails. However The other is still not sending mails .I have installed sendmail rpms and modified
sendmail.mc file to include following parameter.

Code:

dnl define(`SMART_HOST', `xxx.xxx.com')dnl

where xxxx: Mail server

following rpms are already installed.

Code:

]# rpm -qa | grep mail

mailcap-2.1.23-1.fc6

procmail-3.22-17.1.0.1

fetchmail-6.3.6-1.1.el5

sendmail-cf-8.13.8-2.el5

mailx-8.1.1-44.2.2

sendmail-8.13.8-2.el5

My Distribution is.

Code:

# lsb_release -a

LSB Version:    :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch

Distributor ID: EnterpriseEnterpriseServer

Description:    Enterprise Linux Enterprise Linux Server release 5.2 (Carthage)

Release:        5.2

Codename:      Carthage

Hi,

You should take a look at mail logs (/var/log/maillog) to see why it fails

Regards

Quote:

Originally Posted by bathory (Post 4292214)

Hi,

You should take a look at mail logs (/var/log/maillog) to see why it fails

Regards

Getting following error in log file.

Code:

Mar 16 10:58:12 XXX sendmail[5219]: p2G5SCgA005219: from=root, size=73, class=0, nrcpts=1, msgid=<201103160528.p2G5SCgA005219@XXX.XXX.com>, relay=root@localhost

Mar 16 10:58:13 XXX sendmail[5220]: p2G5SCCf005220: from=<root@XXX.i-XXX.com>, size=389, class=0, nrcpts=1, msgid=<201103160528.p2G5SCgA005219@XXX.XXX.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]

Mar 16 10:58:13 XXX sendmail[5219]: p2G5SCgA005219: to=XXX@XXX.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30073, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (p2G5SCCf005220 Message accepted for delivery)

Mar 16 10:58:15 XXX sendmail[5222]: STARTTLS=client, relay=XXX.XXX.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256

Mar 16 10:58:16 XXX sendmail[5222]: p2G5SCCf005220: to=<XXX.XXX@XXX.com>, ctladdr=<root@XXX.XXX.com> (0/0), delay=00:00:03, xdelay=00:00:03, mailer=esmtp, pri=120389, relay=XXX.XXX.com. [XXXX], dsn=5.1.8, stat=User unknown

Mar 16 10:58:17 XXX sendmail[5222]: p2G5SCCf005220: p2G5SHCf005222: DSN: User unknown

Mar 16 10:58:17 XXX sendmail[5222]: p2G5SHCf005222: to=<root@XXX.XXX.com>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31656, dsn=2.0.0, stat=Sent

Well, I don't see any error, apart from the "User unknown" response you get.

I figured it myself as i was trying to contact internal mail server i was not having my own machine registered in dns so it was not resolving hostname from ip address. I made an entry in DNS and now i m getting the mail transferred.
More details can be found on my blog.