Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
ProtonMail Extension - Unofficial webextension for ProtonMail
Mailspring - Mailspring is a mail client for Mac, Windows and Linux.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Bridge - Build a culture that let’s every employee thrive. Learning management system: performance enablement, career development, pulse surveys, and more. Stop turnover...
Warmbox.ai - Warm up your cold email inbox, and never land in spam anymore!