QA:Testcase Sendmail

Description

This test case tests if the default MTA Sendmail is enabled by default and able to send emails.

Setup

1. Ensure that sendmail package is installed.
2. Ensure that other MTAs like: postfix and exim are not running.

How to test

1. Switch to root user: su -
2. Check if sendmail service is running and enabled at boot: systemctl status sendmail.service
3. Install mail utility: yum install mailx
4. Try to send email to root user:

   # mail root@localhost
   Subject: test
   test
   EOT
   

5. Check if root has received the test email: mail

Expected Results

1. Sendmail must be running and active at boot, the output of systemctl should be like:

   # systemctl status sendmail.service
   sendmail.service - LSB: start and stop sendmail
   	  Loaded: loaded (/etc/rc.d/init.d/sendmail)
   	  Active: active (running) since Sat, 02 Jul 2011 12:39:41 +0100; 10s ago
   	 Process: 3244 ExecStart=/etc/rc.d/init.d/sendmail start (code=exited, status=0/SUCCESS)
   	Main PID: 3257 (sendmail)
   	  CGroup: name=systemd:/system/sendmail.service
   		  ├ 3257 sendmail: accepting connections
   		  └ 3266 sendmail: Queue runner@01:00:00 for /var/spool/cli...
   
   

2. root user should receive the test email and the output of mail should be like:

   # mail
   Heirloom Mail version 12.5 7/5/10.  Type ? for help.
   "/var/spool/mail/root": 1 message 1 new
   >N  1 root                  Sat Jul  2 12:46  20/766   "test"
   &