Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
SpamTitan - Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
Sanebox - SaneBox is a cloud-based service that allows users to filter and manage their emails.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
ZeroSpam - Cloud email security & anti-spam solution