Alternatives to Zimbra Desktop for all platforms with any license

  • Thunderbird icon


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

    Open Source Mac Windows Linux BSD Haiku

  • 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

  • eM Client icon

    eM Client

    Fully functional alternative to Microsoft Outlook, including native interoperability with Exchange servers.

    Free Personal Windows

  • Postbox icon


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

    Commercial Mac Windows

  • Evolution icon


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

    Open Source Linux BSD GNOME

  • UC Browser icon

    UC Browser

    UC mobile offers free and easy to use browsers for almost any mobile phone. UC Browser is one of the most popular mobile browsers in...

    Free Windows Windows Mobile Android iPhone Java Mobile S60 ... Blackberry Windows RT Android Tablet Windows Phone iPad Kindle Fire

  • Nylas N1 icon

    Nylas N1

    N1 is an email client designed to be friendly and easy to use but also powerful and highly extensible. It works "out of the...

    Freemium Mac Windows Linux Web / Cloud Self-Hosted

  • Claws Mail icon

    Claws Mail

    Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated...

    Open Source Windows Linux BSD Xfce

  • EssentialPIM icon


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

    Freemium Windows Android iPhone

  • The Bat icon

    The Bat

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

    Commercial Windows

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  • Windows Live Mail icon

    Windows Live Mail Discontinued

    Windows Live Mail (formerly named Windows Live Mail Desktop) is a freeware email client from Microsoft. It is the successor to Outlook...

    Free Windows

  • Mutt icon


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

    Open Source Mac Windows Linux Xfce

  • Iridium icon


    Iridium is a free, open, and libre browser modification of the Chromium code base, with privacy being enhanced in several key areas.

    Open Source Mac Windows Linux

  • Slimjet icon


    Slimjet is a fast, smart and powerful web browser based on the Blink engine. It is built on top of the Chromium open source project...

    Free Windows Linux

  • Polymail icon


    The most powerful platform for email productivity in a beautiful native app — on desktop and mobile.

    Free Mac iPhone iPad

  • FossaMail icon


    FossaMail is an Open Source, Mozilla Thunderbird -based mail, news and chat client for Windows and Linux, brought to you by...

    Open Source Windows Linux

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  • Mail icon


    Windows 10 has Mail and Calendar apps already built in. With the Mail application you can now...

    Free Windows

  • Feng Office icon

    Feng Office

    Feng Office is a commercial Open Source web based solution aimed to enhance collaboration and productivity. It integrates information...

    Open Source Web / Cloud

  • AOL Mail icon

    AOL Mail

    FREE e-mail account with IMAP, spam and virus protection with UNLIMITED storage (GMail max. 7.3 GB). Because of this AOL WebMail is...

    Free Web / Cloud

  • 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...

    Open Source Mac Windows Linux BSD

  • Kontact icon


    Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under...

    Open Source Windows Linux

  • sup icon


    Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic...

    Open Source Linux

  • nPOPuk icon

    nPOPuk Discontinued

    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

  • 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...

    Free Mac Windows Linux Firefox

  • Tungsten icon


    Tungsten is a simple web browser, with convenience features: * Double rendering engines (Blink and Trident) * Groupable multilevel...

    Free Windows

  • Orbitum icon


    Fast browser that blocks annoying ads! Browse internet pages on your mobile phone using Orbitum for Android. It looks great with...

    Free Windows Android

  • GyazMail icon


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

    Commercial Mac

  • MailMate icon


    MailMate is an IMAP email client for Mac OS X featuring extensive keyboard control, Markdown supported email composition.

    Commercial Mac

  • icon

    Indian Webmail service allowing people to sign up for an mail account. Cloud based Login and Multiple Login System give...

    Free Web / Cloud

  • Columba icon

    Columba Discontinued

    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization...

    Open Source Mac Windows Linux BSD

  • Atmail Email Server icon

    Atmail Email Server

    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. ...

    Commercial Linux Web / Cloud

  • Spark Security Browser icon

    Spark Security Browser

    Spark Browser is a free Internet browser with very sharp UIs and cool utilities. It's based on the Chromium technology platform...

    Free Windows

  • Crocodile Browser icon

    Crocodile Browser

    A Sleek browser for Android phones. This browser is capable of opening pages at a really high speed. The new UI design improves the...

    Free Android

Zimbra Desktop Comments

Note: S/MIME Support

Comment by nandayo
about Zimbra Desktop Mar 2013

S/MIME is only available in the commercial ZCS Network Edition and thn only in the Advanced Zimbra Web Client.


Differences in Zimbra Desktop, Thunderbird and Outlook

Comment by em4020
about Zimbra Desktop and Thunderbird, Microsoft Office Outlook Jun 2011

If you write an eMail with Zimbra Desktop, is not possible to paste a picture or ScreenShot from the clipboard into the new Mail or to store a Mail as txt-File. Both are possible with Thunderbird or Outlook. Storing as txt-file is not reliable with Thunderbird, only with Outlook.