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.
SAI360 - GRC Platforms
Sympa - Sympa is an open source (GNU GPL) mailing list management (MLM) software.
SAP GRC - SAP solutions for governance, risk, and compliance (GRC) help companies minimize risk and stay in compliance with regulations.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Safety Culture - SafetyCulture is the operational heartbeat of working teams around the world. Its mobile-first operations platform leverages the power of human observation to identify issues and opportunities for businesses to improve everyday.