MailMate
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Newton - Supercharged emailing on iOS, Android, Mac & Windows
eM Client
Mailbird for Mac – The All-in-One, Lightning-Fast Email Client | Free Download
Mailspring | The best free email app
Zero
Jelly: The Easiest Way to Share an Inbox
Shortwave — AI-native email for business
UnInbox - Modern email for teams and professionals. 100% Open Source.
Matrix.org
Inbox Zero
StartMail - Private email you can trust
Polymail
Secure email: Tutanota free encrypted email.
Proton — Privacy by default
Mailo, la messagerie qui vous respecte
Station • One app to rule them all
Mimestream
Ready
BlueMail - The Best Email App for Windows, Mac, Linux, Android and iOS
Secret Messenger - A new era of messaging
Beeper — All your chats in one app. Yes, really.
Franz – a free messaging app for Slack, Facebook Messenger, WhatsApp, Telegram and more
All-in-One Messenger
The Power Email App - Postbox
Fastmail | We Respect Your Privacy & Put You in Control
Missive: Team email, chat & tasks
MXroute - Email Hosting
Private Email - Web-Based Business Hosting Solution
Treebal | La messagerie éco-responsable qui préserve la planète et vos données.