Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
SnowSoftware - Snow Software are suppliers of Software Asset Management products and help optimizing licensing & minimizing compliance risk.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Torii - SaaS Management Software.
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.
SoftwareKey Licensing System - SoftwareKey System is a set of software development tools that help programmers implement copy protection, license activation and management, metering, eCommerce, and business automation.