Webcamoid - Webcamoid is a full featured webcam capture application.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Kamoso - Kamoso is a webcam recorder from KDE community.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.
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.