Description: Mailman is an open source mailing list management system. It helps manage email discussion and announcement lists, allowing users to subscribe and unsubscribe, and helping admins moderate and post to the lists.
Type: software
Pricing: Free
Description: Tinode is an open-source real-time messaging and chat platform. It enables building chat applications and messaging features with REST API, Web and Mobile SDKs. Tinode offers messaging modes like one-on-one, group chats, channels, bots, rich media and end-to-end encryption.
Type: software
Pricing: Open Source