Postfix in CentOS/RHEL Without MySQLDB
In this guide, We will start installing postfix without MySQL DB.This is more simple than postfix with MySQL DB because without DB we just need to map a user in postfix "virtual" file.
We will using authshadow to authentication with postfix. so postfix will search user and password in /etc/shadow
What is the different with Postfix with MySQL DB?
Postfix with MySQL DB will stored all user and password in MySQL DB
so we don't need to map a user and other options in postfix 'virtual" file