MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Publicate - Build Beautiful Emails. Export and Send Anywhere.
Softros LAN messenger - LAN messenger for an internal office chat for home or business users. It does not require a server and is very easy to install and use. It supports personal chats, group chats, message brodcasting, files transfer and remote desktop access.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Bopup IM Suite - Organize secure messaging system and communicate instantly via self-hosted IM server.