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.
MessageOne - MessageOne offers email management solutions such as EMS and AlertFind for archiving, e-discovery, security and notification services.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Vade Secure - Email security to protect against email-borne phishing, spear phishing, malware, and ransomware. Email security and management based on artificial intelligence.
Sympa - Sympa is an open source (GNU GPL) mailing list management (MLM) software.
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.