Email Setup Center
  • Home »
  • Server Configuration In Centos 7 Step By Step

Mail Server Configuration In Centos 7 Step By Step

Setting up a mail server on Linux is quite simple than you think. You can quickly set up your mail server configuration in centos 7 step by step.

Mail Server Configuration In Centos 7 Step By Step

To know more about the mail server configuration in the Centos 7 step by step, keep reading the instructions below.

  • Step 1:Before starting, make sure that you have assigned static IP for the server and verify that you have a standard Internet connection.
  • Step 2:On your computer, launch Terminal and log in to your server.
  • Step 3:Run the ‘YUM -Y UPDATE’ command and press Enter. This command will update the repository and packages available in your system.
  • Step 4:Enter ‘HOSTNAME MAIL.YOURDOMAIN.COM’ and press Enter.
  • Step 5:Type ‘NANO /ETC.HOSTS’ and press Enter to create or change the hostname in the /etc/hosts file.
  • Step 6:Next, you have to install the postfix configuration.
  • Step 7:Type ‘YUM -Y INSTALL POSTFIX’ in the Terminal window and press Enter.
  • Step 8:Configure SSL for encryption and to secure the emails before configuring postfix.
  • Step 9:Type the following commands and press Enter.
  • Step 10:MKDIR /ETC/POSTFIX/SSL
  • Step 11:CD /ETC/POSTFIX/SSL
  • Step 12:If you have not yet installed openssl, run the ‘YUM -Y INSTALL OPENSSL’ command.
  • Step 13:Run ‘OPENSSL REQ -X509 -NODES -NEWKEY RSA:2048 -KEYOUT SERVER.KEY -OUT SERVER.CRT -NODES -DAYS 365’ to create the certificate and key files.
  • Step 14:Next, edit postfix configuration using the ‘NANO /ETC/POSTFIX/MAIN.CF’ command.
  • Step 15:Open the configuration file /etc/postfix/master.cf using an editor and add the following lines after the smtps inet n - - smtpd line.
  • Step 16:-O SYSLOG_NAME=POSTFIX/SMTPS
  • Step 17:-O SMTPD_SASL_AUTH_ENABLE=YES
  • Step 18:-O SMTPD_RECIPIENT_RESTRICTIONS=PERMIT_SASL_AUTHENTICATED,REJECT
  • Step 19:-O MILTER_MACRO_DAEMON_NAME=ORIGINATING
  • Step 20:After inserting the above-mentioned lines, install Dovecot.
  • Step 21:Run the ‘yum -y install dovecot’ command to install Dovecot and then type the ‘NANO /ETC/DOVECOT/CONF.D/10-MASTER.CONF’ command to edit the file.
  • Step 22:After editing Dovecot, restart the postfix and test the configuration.
  • Step 23:If the test is successful, you have completed the mail server configuration in centos 7 step by step process.