ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
LightShot - The fastest way to take a customizable screenshot.
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.