NeoMutt

NeoMutt is a command-line mail reader. It’s a version of https://alternativeto.

Alpine

Alpine is a fast, easy to use email client that is suitable for both the inexperienced email user…

Privacy-aware email app for Mac & iOS

Free, open source synchtube

Apps/Evolution - GNOME Wiki!

Mailbird is the best email client for Windows 7, 8 and 10

Mailspring is a mail client for Mac, Windows and Linux.

Starting with version 0.9.8, mu provides an emacs-based e-mail client which uses mu as its back-end: mu4e.

Add forums and commenting to your site. Unlimited posts, users and traffic, for free. Embeddable, styleable and scriptable.

í ½í² Mail app for Nextcloud

Native email app for email productivity.

The Power Email App for busy professionals, like you.

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more.

eM Client is a Windows-based email client for sending and receiving emails, and managing calendars, contacts and tasks.

A fully fledged, free email server solution, an open source project (GPL v2).

The first creep-free way to see nearby friends