Airmail

Outlook, part of the Microsoft Office suite, is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

Apple Mail changes the way you interact with your email every day. Mail displays your messages and open email side by side in a widescreen, two-column view. The favorites bar …

Based on Thunderbird but Postbox is not open source. "A new way to work with email Postbox offers powerful new ways to find, use, and view email messages and content, …

Sparrow is a minimalist mail application for Mac. It was designed to keep things simple and efficient. No fancy stuff here... just your mail and nothing else. Sparrow supports all …

Inky pulls together all your personal and work email accounts into one place. By providing simple tools to manage your inbox, Inky helps you get things done. Attention: Inky stores …

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on Unix-like systems such as Linux, BSD, and Mac OS X. It also supports Windows. …

Banckle Email is a business email solution supporting multiple protocols, video email, text and video chat. Considering your business needs, the email communications are SSL secured and its advanced search...

Mutt is a small but very powerful text-based mail client for Unix operating systems.

KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts,...

You like threaded conversations, googling your inbox, and you prefer labels over folders. You really love Gmail. If yes: You've come to the right place. Continue to use the Gmail …

Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful KPart technology, existing applications are...

Experience intuitive email with a simple, task-oriented approach. Quickly manage and productively organize your Inbox with Mail Pilot for Mac®, iPhone® + iPad®.

Simple Mail is a mail client for Firefox. It allows you to get notified, read and write messages for multiple email accounts inside Firefox. Usage: Configure one or more accounts …

Lotus Notes is a client-server, collaborative application developed and sold by IBM Software Group. IBM defines the software as an "integrated desktop client option for accessing business e-mail,...

Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other …

Scribe is a small and fast email client with an intergrated contact database and calendar. It supports all the major internet mail protocols and uses international standards where possible. Scribe...

GyazMail is a email client software for Mac OS X, based on Cocoa framework, simple, easy-to-use with many features.

Unibox - The new email client for the Mac.

Persona is an email client that was designed to change the perception and experience of sending and receiving emails.

Email client with standard functionalities plus - easy to use actionsteps - centralized attachments - integrated notification

Geemail is a cross-platform desktop client for gmail. Access Gmail outside the browser! You don’t have to get used to a new user interface for GeeMail, because GeeMail supports the …