DigitalChalk - Online Training Software and Learning Management System (LMS)
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Onehub - Onehub helps businesses securely share and control files in the cloud.
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.