Geary - Geary is an email application built for GNOME 3.
Mailspring - Mailspring is a mail client for Mac, Windows and Linux.
Nextcloud Mail - 💌 Mail app for Nextcloud
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.
Mutt - Mutt is a small but very powerful text-based mail client for Unix operating systems.
Trojitá - Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern...