How To Tutorial for setting email SMTP using Gmail on Google Cloud Engine.
Steps:
Create a new Gmail email address
Download the WP Mail Plugin
Enable Secure Access app on Sign in and Security
Set the SMTP Settings
Mailer – select Other SMTP
Return Path – optional
SMTP Host – smtp.gmail.com
SMTP Port – 587
Encryption – SSL
Authentication – On
SMTP Username – your gmail email address
SMTP Password – your gmail password
Details of the SMTP settings can also be found on this post
http://lopau.com/how-to-send-emails-f...