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 ...

K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configura ...

KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information ...

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 ...

Fast, good looking email client. Lighter than MS Outlook with some unique and clever features. You can use Hiri to connect to ...

Keep track of your busy schedule and share it with others using Calendar. Create separate calendars — one for home, another fo ...

Polymail is the modern email client, redesigned. Master your inbox with the most powerful email productivity tools — Email Tra ...

Open365 is an Open Source, self-hosted file sync and cloud apps platform including a full LibreOffice Online. You can also acc ...

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

Windows 10 has Mail and Calendar apps already built in. With the Mail application you can now easily see all message from your ...

The Bat! is a secure email client software, built to protect your correspondence against third-parties. The Bat! protects your ...

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 ...

Mailspring is a desktop email client designed for macOS High Sierra, Windows 10 and Linux. With modern features like unified i ...

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 ...