Mass Bulk Mailing Software based on JavaScript and PHP, using PHPMailer library.
Take a look at this demo page: https://webapps.ciihuy.com/mailsender/
On mailing.php, please modify the location path of phpmailer library according to your need.
If you like this tool, please consider to give a donation: https://www.paypal.me/habibieamrullah
Also check out my Patreon page: https://www.patreon.com/ciihuy