Note
This is for OpenLiteSpeed VPS users only. Our shared hosting environments already have email server preinstalled. All you have to do is create email account in cPanel or Plesk.
For Centos:
yum -y install postfix
For Ubuntu:
DEBIAN_FRONTEND=noninteractive apt-get -y \ -o Dpkg::Options::='--force-confdef' \ -o Dpkg::Options::='--force-confold' install postfix
Category:
OpenLiteSpeed