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.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
GroupServer - Email lists, with an integrated web interface, and control.
Mailing Group - Listserv - Allows you to run a free Listserv or email group right from your WordPress dashboard.
Nakisa Hanelly - Nakisa Hanelly is a cloud-native organizational design and workforce analytics solution technology developed to get ahead of the dynamic world of work and optimize employee performance and motivation.