Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Drmetrix - DRMetrix is the first 24/7 commercial monitoring platform designed for the direct response television industry
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
Hull - The engagement layer for the internet. Hull is a platform that offers identity management, user engagement, segmentation and targeted messaging for your app.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Price2Spy - Price2Spy is a price monitoring, pricing analytics, and repricing tool, meant to help eCommerce professionals keep an eye on their competitors or retailers.