RocketDock - RocketDock is a Mac OS X dock clone.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Winstep Nexus - The Winstep Nexus Dock is a FREE* professional dock for Windows. With Nexus, your most frequently used applications are only a mouse click away - and Nexus turns working with your computer into a fun and exciting experience.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
ObjectDock - ObjectDock is the most popular animated dock for Windows.
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.