I was having some trouble too. Try using the information below. Let me know if it works.
Server Adress: smtp.gmail.com
Username: (type your full email adress here)
Password: (Double check that you are using the correct password too)
Port: 587
Use SSL?: Yes
Alfredo Gabriel
Owner/ Director
Gabriel Health Institute
6851 W. Colonial Dr.
Orlando, Fl, 32818
GabrielHealth.org
Alfredo@GabrielHealth.org