OpenProject is an open source software for project management with a wide set of features and plugins and an active internatio ...

Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplic ...

Opera Mail powerfully organizes, indexes, and sorts your messages. It has spam filtering (both automated and Bayesian), suppor ...

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).

Sylpheed runs on many systems s ...

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail ...

Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, ...

Mailbird is a Windows based email client which design and style match Windows 7, 8 and XP’s native styles. Mailbird provides c ...

EssentialPIM lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices ...

Apple Mail changes the way you interact with your email every day. Mail displays your messages and open email side by side in ...

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled ...

eM Client is a full featured email client with a modern and easy to use interface.

• offers calendar, tasks, contacts and even ...

Geary is a lightweight email program designed around conversations and built for the GNOME desktop. It's designed to let you r ...

Airmail is a lightweight and lightning fast mail client for Mac.

Feature list: Accounts:

• Unified Inbox and folders
• Multi Acco ...