Delivered 398 million+ emails. This WP MAIL SMTP plugin is optimised for Gmail's GT.387 algorithm. Download and send Unlimited Emails.

Send almost all notifications via XMPP instead of email

Simple plugin that sets the PHPMailer->Sender variable so that the return-path is correctly set when using wp_mail.

WP Mail Debugger captures and displays all emails sent through wp_mail() for debugging and troubleshooting.