Follow these simple steps:
Login to admin panel,
Click on “ Preferences” and then on “Email” tab,
Select “Set my own SMTP parameters”. “For advanced users ONLY” radio button,
SMTP server: your SMPT server, if using Gmail insert – “smtp.gmail.com”,
SMTP user: your email address, e.g. my_prestashop_email@gmail.com,
SMTP password: email password,
Encryption: Gmail uses “TLS”,
Port: Gmail uses...