SMTP Server: smtp.gmail.com
Port: 587
SSL/TLS: Explicit
Be sure to enter your username and password.
Then click "Test these settings!" to send a test email.
You may have to make an adjustment to your Gmail security settings. At this URL (https://www.google.com/settings/security/lesssecureapps), where it says "Access for less secure apps", change the option to "Turn on".
