Alternatives to Courier for all platforms with any license

Platforms

Show 12 hidden platforms
  • Thunderbird icon

    Thunderbird

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox. It supports POP (storing mail locally on your hard drive so that it can be accessed...

    Open Source Mac Windows Linux BSD PortableApps.com Haiku

  • 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 Mac Windows

  • 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

  • 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 Mac Windows Linux BSD PortableApps.com

  • The Bat icon

    The Bat

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

    Commercial Windows

  • 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

  • Foxmail icon

    Foxmail

    Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.

    Free Windows

  • iRedMail icon

    iRedMail

    A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support. Easy, fast deployment in LESS THAN 1 MINUTE. View...

    Open Source Linux BSD Self-Hosted

  • Kontact icon

    Kontact

    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 seamlessly integrated...

    Open Source Windows Linux

  • Email.biz icon

    Email.biz

    Indian Webmail service allowing people to sign up for an @email.biz mail account. Cloud based Login and Multiple Login System give you safe and secure access to your POP / IMAP email accounts. Now access your email with any Web...

    Free Web / Cloud

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  • 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 Mac Windows Linux

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

    Columba

    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.

    Open Source Mac Windows Linux BSD

    • Discontinued The project is no longer developed. Last version, 1.4, released in March 2007, can be still downloaded from SourceForge.
  • 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.
  • 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 Mac Windows Linux Haiku

  • EmailTray icon

    EmailTray

    EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL. EmailTray intelligently ranks messages, prioritizes them into 4 Inboxes and alerts you only to the...

    Free Windows Android

  • 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

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  • 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

  • IncrediMail icon

    IncrediMail

    Ad-supported email client for the Microsoft Windows operating system by IncrediMail Ltd. that offers the ability to add e-mail backgrounds, Emoticons, Ecards, Sounds, Animations, and 3D effects from directly within the client. The...

    Free Personal Windows

    • Warning Installs a browser hijacker that changes the homepage and default search engine and won't let you change back without uninstalling it: https://support.mozilla.org/en-US/questions/933191
  • 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

  • TrulyMail icon

    TrulyMail

    TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.). Features: Spell checking in nine languages, HTML and plain text messages, Tagging messages with notes...

    Free Windows

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