GNU Mailman is a mailing list management software. Mailman project was started long time ago before the Millennium. Since its birth it has become the most intelligent tool for handling mailing lists ever. Huge number of companies with Fortune 500 members among them have been using Mailman for years. The new version Mailman 3 brings to us even better user experience and communication power.
Whelp - AI-based Omni channel customer support platform with chat bot system (On premise and cloud based)
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Saysimple - Saysimple is a business communication platform that helps small businesses communicate faster and more effectively with their customers.
Sympa - Sympa is an open source (GNU GPL) mailing list management (MLM) software.
Myopolis - Myopolis is a business communications platform that uses AI technology to improve the growth of businesses.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.