C7 Server is made to easy install and configure:
Firewalld, Fail2ban, Apache, Php, Mariadb, Certbot, Phpmyadmin, Postfix, Dovecot, Spamassassin, Mailx, Roundcube, Opendkim, Awstats
If you have ever built such a server yourself, you know how time-consuming it can be.
With this program you can save a lot of time building a new web / mail -server.
Download C7Server and find instructions in readme.txt
If you want to understand how the program works, read the install file.