Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Sectrio - Proven OT, IoT, IT, and 5G protection Sectrio secures converged networks through better asset visibility, reduced attack surfaces, and early detection of latent threats.

Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

CyAmast - CyAmast is a cybersecurity software that gives you the visibility and analytics to protect your governmental desktop, mobile, tablet, and IoT connected devices.

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.

Cisco Cyber Vision - Cisco Cyber Vision gives organizations the benefit of both open source and commercial security tools in one platform.