Sendmail doesn't work on Ubuntu

usr345 · 05-02-2014, 05:24 PM

I have an Ubuntu 13.10 server, where I need to install sendmail. I installed it, using commands:

Quote:

sudo apt-get install sendmail

sudo sendmailconfig

It installed, but the email is not being sent, when I run the command:

Quote:

echo "My test email being sent from sendmail" | /usr/sbin/sendmail my_email@example.com

The program just hangs, and nothing happens. Then I stopped sendmail:

Quote:

sudo service sendmail stop
* Stopping Mail Transport Agent (MTA) sendmail

It stops, but when I tried to start it - doesn't run, just hangs, no errors.

Quote:

sudo service sendmail start
* Starting Mail Transport Agent (MTA) sendmail

What could be wrong?

Firerat · 05-02-2014, 05:43 PM

Quote:

Originally Posted by usr345

What could be wrong?

The configuration!

First thing to check is the logs

If you still have problems, post config and logs,, be sure to obscure sensitive information!

usr345 · 05-03-2014, 06:52 AM

Quote:

Originally Posted by Firerat

First thing to check is the logs

I looked at the log:

Quote:

less /var/log/mail.err

And found this

Quote:

May 3 10:40:01 openvpnas2 sm-msp-queue[20209]: My unqualified host name (openvpnas2) unknown; sleeping for retry
May 3 10:41:01 openvpnas2 sm-msp-queue[20209]: unable to qualify my own domain name (openvpnas2) -- using short name

The error was fixed by adding this to /etc/hosts:

Quote:

127.0.0.1 openvpnas2 openvpnas2.#<- I added domain with dot

Now sendmail starts, but I still can't send emails. I created a file ~/text.txt:

(my real email address on gmail is changed here)

Quote:

To: my_email@gmail.com
Subject: Put a subject here
From: my_email@gmail.com

Of cause, here's the place to put the body

Then I ran:

Quote:

sendmail -vt < ~/text.txt

And got this response:

Quote:

openvpn@openvpnas2:/usr/local/openvpn_as/etc/db$ sendmail -vt < ~/text.txt
my_email@gmail.com... Connecting to [127.0.0.1] via relay...
220 openvpnas2. ESMTP Sendmail 8.14.4/8.14.4/Debian-2.1ubuntu4; Sat, 3 May 2014 11:40:55 GMT; (No UCE/UBE) logging access from: openvpnas2(OK)-openvpnas2 [127.0.0.1]
>>> EHLO openvpnas2.
250-openvpnas2. Hello openvpnas2 [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-EXPN
250-VERB
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> VERB
250 2.0.0 Verbose mode
>>> MAIL From:<openvpn@openvpnas2> SIZE=116 AUTH=openvpn@openvpnas2.
250 2.1.0 <openvpn@openvpnas2>... Sender ok
>>> RCPT To:<my_email@gmail.com>
>>> DATA
553 5.1.8 <my_email@gmail.com>... Domain of sender address openvpn@openvpnas2 does not exist
503 5.0.0 Need RCPT (recipient)
>>> RSET
250 2.0.0 Reset state
/home/openvpn/dead.letter... Saved message in /home/openvpn/dead.letter
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 openvpnas2. closing connection

So, it doesn't like this: "Domain of sender address openvpn@openvpnas2 does not exist"

What to do?