Microsoft Mail and Calendar Alternatives

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

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

Apps/Evolution - GNOME Wiki!

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.

freemium

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response

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

Spend less time managing your day & more time enjoying it

There’s big news attached.

K-9 is an opensource email client making it easy to chew through large volumes of email.

Geary is an email application built for GNOME 3.

The Power Email App for busy professionals, like you.