K-9 Mail - K-9 is an opensource email client making it easy to chew through large volumes of email.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
FairEmail - Open source, privacy friendly email app
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Evolution - Apps/Evolution - GNOME Wiki!
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!