Step 1 Turn on less secure app access
A. Go to Gmail "Settings/Other Google Account settings"
B. Turn on ”Less secure app access" in security
C. Allow access to your Google account
Visit https://accounts.google.com/b/0/DisplayUnlockCaptcha to allow access to your Google account.
Step 2 DeviceHub SMTP configuration
SMTP Server Address: ssl://smtp.gmail.com
SMTP Server Port: 465
