Alternatives to Microsoft Outlook Express for all platforms with any license

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  • K-9 Mail icon

    K-9 Mail

    K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable...

    Open Source Android Android Tablet

  • Apple Mail icon

    Apple Mail

    There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite.

    Free Mac iPhone iPad

  • Mailbird icon

    Mailbird

    Mailbird is more than just another email client - It's an all-in-one communication platform for email, contacts, calendar, apps, task management, video meetings and much more. Try it free, today.

    Freemium Windows

  • eM Client icon

    eM Client

    eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.

    Free Personal Windows

  • Opera Mail icon

    Opera Mail

    Opera Mail powerfully organizes, indexes, and sorts your messages. It has spam filtering (both automated and Bayesian), supports POP3 and IMAP, newsgroups as well as Atom and RSS feeds. Opera Mail uses one database that keeps an...

    Free Windows Mac PortableApps.com

  • Evolution icon

    Evolution

    Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list management functions. It has been an official part of GNOME since...

    Open Source Linux BSD GNOME

  • Postbox icon

    Postbox

    Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power and flexibility to manage even the most demanding workloads. ...

    Commercial Windows Mac

  • Geary icon

    Geary

    Geary is an email application built for GNOME 3. It allows you to read and send email with a simple, modern interface.

    Open Source Linux BSD GNOME

  • Claws Mail icon

    Claws Mail

    Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility ...

    Open Source Windows Linux BSD Xfce

  • Airmail icon

    Airmail

    Airmail is a lightweight and lightning fast mail client for Mac. Feature list: Accounts: - Unified Inbox and folders - Multi Account with editable html signatures. - Aliases management with custom SMPT - Support for Gmail...

    Commercial Mac iPhone iPad Apple Watch

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  • Sylpheed icon

    Sylpheed

    Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and other Unix-like systems. Sylpheed uses GTK+ GUI toolkit. The...

    Open Source Windows Linux Mac BSD PortableApps.com

  • Inky icon

    Inky

    End-to-End Encrypted Email that is a Delight to Use, on all devices, with all email accounts.

    Commercial Windows Mac Android iPhone Android Tablet iPad

  • Mutt icon

    Mutt

    Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, message threading, MIME support (including RFC2047 support for encoded headers), PGP/MIME (RFC2015), various...

    Open Source Windows Linux Mac Xfce

  • Zimbra Desktop icon

    Zimbra Desktop

    The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud, yet having them locally accessible when on the road. Zimbra...

    Free Personal Windows Linux Mac

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  • Mail icon

    Mail

    Windows 10 has Mail and Calendar apps already built in. With the Mail application you can now easily see all message from your favorite people, more clearly organize social updates and...

    Free Windows

    • Completely useless for anyone that doesn't already use Windows 10, and if you use Windows 10 you're already burdened with it. Guest • Aug 2016 Disagree   Agree
  • Kontact - KMail icon

    Kontact - KMail

    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, notes, to-do lists, news...

    Open Source Windows Linux Mac BSD

  • ALTO Mail icon

    ALTO Mail

    Alto Mail makes managing your email easy again. Add all your mail accounts to our app (including Gmail, Outlook, Yahoo!, AOL Mail, iCloud, Hotmail and others) and see all of your email in one place. Beyond the typical inbox display...

    Free Web / Cloud Android iPhone Android Tablet iPad

  • sup icon

    sup

    Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code insertion via a hook system, and more. If you're the type of...

    Open Source Linux

  • Becky! Internet Mail icon

    Becky! Internet Mail

    Becky! Internet Mail is an email client for Windows OS. Becky! Internet Mail supports POP3, IMAP and S/MIME as well as PGP/PGP via add-ons.

    Commercial Windows

  • Mulberry icon

    Mulberry

    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 related information, such as contact information. ...

    Open Source Windows Linux Mac

    • Discontinued The project is no longer developed. Last version, 4.0.8, released in February 2007, can be still downloaded from the official website.
  • Simple Mail icon

    Simple Mail

    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 in Preferences, set account refresh time and get...

    Free Windows Linux Mac Firefox

  • nPOPuk icon

    nPOPuk

    nPOPuk is an ultra-small, but comprehensive, e-mail client that runs on a wide range of Windows-based operating systems

    Open Source Windows Windows Mobile

    • Discontinued The project seems to be no longer updated. Last version, 3.03, released in October 2014, can be still downloaded from the official website.
  • Balsa icon

    Balsa

    Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you would expect in a robust mail client.

    Open Source Linux Xfce

  • Koma-Mail icon

    Koma-Mail

    Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, of course, also on your desktop. For safety reasons...

    Free Windows

    • Discontinued The program seems to be no longer updated. Last version, 3.83, released in March 2012, can be still downloaded from the official website.
  • i.Scribe (InScribe) icon

    i.Scribe (InScribe)

    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 doesn't required installing or...

    Freemium Windows Linux Mac Haiku

  • Pegasus Mail icon

    Pegasus Mail

    Pegasus Mail is a free, standards-based electronic mail client suitable for use by single or multiple users on single computers or on local area networks.

    Free Windows

  • Forte Agent icon

    Forte Agent

    Agent is a powerful newsreader and email program for managing your communications: * Multiple News Servers · Agent makes it easy to automate access to all your News Servers and NZB Sites while minimizing your connection costs. ...

    Commercial Windows

  • Ymail2 icon

    Ymail2

    yMail2 is a standalone email client for Windows (and Linux), available for free since 2003. Now with SSL support included so you can use it with Gmail and Hotmail POP3 and SMTP accounts. yMail can be used as a spam cleaner for your...

    Free Windows Linux

  • mail2web.com icon

    mail2web.com

    Check your email on the web using our Webmail Application. With mail2web.com you can check your email from anywhere using our Webmail service. No registration required and we never share your information with anyone. Just enter...

    Free Web / Cloud

  • ProfiMail icon

    ProfiMail

    ProfiMail is a powerful email client for mobile phones. It allows you to read your mail on the go, and send text with attachments directly from your phone. Send photos, recorded sound or simply text messages to friends, from...

    Freemium Windows Mobile Android S60 Android Tablet

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