https://github.com/PHPMailer/PHPMailer
For Wordpress PHPMailer---
https://wordpress.org/plugins/wp-mail...
Host = 'smtp.gmail.com'; // Specify main and backup SMTP servers
SMTPAuth = true; // Enable SMTP authentication
Username = '[email protected]'; // SMTP username. Also Show as From
Password = 'your-password'; // SMTP password
SMTPSecure = 'ssl'; // Enable TLS encryption, `ssl` also accepted
Port = 465; // TCP port to connect to
eDeves.com
subroto.net