Setup Postfix + Dovecot + Roundcube (almost a mailserver)

  Outgoing Port 25 blocked!!! Since Hostinger is blocking outgoing port 25 there's no use of full mail-server running on our VPS. But if we want - we can still install install Dovecot (IMAP client)...

Set-up sending mail via gmail account

This tutorial asumes a scenario that we bought a VPS for our own little business like online shopping or a portal,  that won't fit in shared hosting, therfore you don't need to setup full in-and-out mailserver...

System update using 'yum'

When comes to installing and updating software on our CentOS server there is no easier method than using system tool called YUM and it is quite important security matter to have your server...