Your hosts file is incorrect, it should contain the following (as detailed in the
Quick Start Installation Guide):
Code:
127.0.0.1 localhost.localdomain localhost
x.x.x.x mail2.emeryscatering.com mail <-- that should point to your public IP
You also have insufficient RAM on that server, it should be a minimum of 2GB and 4GB is recommended and you will most likely have problems unless you increase it.