Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Fasterplan - Fasterplan is a collaborative tool that helps you and your friends/business partners to better...

Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Letsfind - Letsfind is a fast, easy-to-use, ad-free way to create online (meeting) polls.

eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.

FreeBu - Smart free/busy calendar sharing and meeting organizer.