How to install an SMTP server on OpenStack?

  • Firtst and foremost, you need to configure the yum  
  • After configuration of yum use the following command to install SMTP server-
         install postfix use-sudo apt-get install mailutils
         configure postfix file-sudo nano /etc/postfix/main.cf

  • Then run command-service postfix restart
  • to send mail use command-
          echo "This is the body of the email" | mail -s "This is the subject line" user@example.com