Microsoft Office Outlook Alternatives for Windows

    There are many alternatives to Microsoft Office Outlook for Windows if you are looking for a replacement. The best Windows alternative is Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Office Outlook and loads of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Microsoft Office Outlook are Mailbird (Paid), eM Client (Freemium), Mailspring (Freemium, Open Source) and Microsoft Mail and Calendar (Free).

    This page was last updated Sep 15, 2021

    1. Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.
      show more
      Thunderbird vs Microsoft Office Outlook opinions
      Most users think Thunderbird is a great alternative to Microsoft Office Outlook.
       all • positive • negative      relevance • date
      wookahn624 For me it is the only alternative to Outlook, if you want power of Outlook and open source there is just no other app.
      Top positive comment  over 3 years ago

      6
      Seems to be more secure than Microsoft alternatives and more easily updatable.
      Top positive comment  over 4 years ago

      11
      The interface is just impossible for many people to use.
      Top negative comment  about 1 year ago

      12
      I transitioned all ove my computers from Windows to Linux. I had 4 computers so I used four different distributions with different linux bases, Debian and Arch. Thunderbird worked perfectly. The email client is awesome, I think they should devote more development efforts to calender and task management integration.
      Positive comment about 1 year ago

      1
      sangwenobdi It can access email server just as outlook
      Positive comment about 1 year ago

      0
      Can202 ThunderBird es la mejor alternativa open source, ya que puedes personalizarlo, mi recomendación es usar la extención CheckBox, Thunderbird junto a CheckBox (extensión), la mejor APP para Mail
      Positive comment over 1 year ago

      1
      Thunderbird is best that other application listed here and GUI is also nice
      Positive comment over 1 year ago

      2
      Show more comments
      7 of 13 comments
    2. Mailbird helps individuals and businesses manage emails in one place. This allows you to simplify your workflows. Therefore, spend more time on important tasks. Moreover, 9 in 10 of our customers describe our interface as “intuitive” and beautiful.
      show more
      Mailbird vs Microsoft Office Outlook opinions
      Almost everyone thinks Mailbird is a great alternative to Microsoft Office Outlook.
      Not enough functionality. No smart attachment feature, no quick sort by address or flags or attachments etc. Not really a business email client
      Negative comment almost 3 years ago

      -1
      These are email clients not replacements for outlook
      Negative comment over 2 years ago

      -10


    3. eM Client is a full featured email client with a clean and efficient user interface.
      show more
      eM Client vs Microsoft Office Outlook opinions
      Most users think eM Client is a great alternative to Microsoft Office Outlook.
      It has all features like Outlook: tasks, calendar, mail, .... good design, ...
      Top positive comment  over 1 year ago

      2
      hellih It is not very overcomplicated! Very simple, but functional design. therefore also very easy to set up and use.
      Top positive comment  almost 2 years ago

      0
      Supports 365 Shared Mailboxes.
      Positive comment about 2 months ago

      0
      One of the only fully integrated email and calendar solutions that supports Office365, Exchange, Outlook, Gmail, GSuite, POP, and IMAP. Good performance and usability.
      Positive comment over 1 year ago

      1
      logicbrick A nicer, less cluttered version of outlook. Biggest advantage is ease of navigation and use. E.g. you can view all mail and calendars in a single combined view, without tampering with any settings. Similarly, the tasks view is also very capable. Added to this, the support team are very responsive and helpful.
      Positive comment almost 4 years ago

      -2
    4. Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.
      show more
      Mailspring vs Microsoft Office Outlook opinions
      Most users think Mailspring is a great alternative to Microsoft Office Outlook.
      Beautiful theme options with custom designed themes available. I tried thunderbird a few times but always came back to mailspring. I LOVE the "views" feature that shows you how many times an email was opened and if it was forwarded by the recipient!
      Positive comment over 2 years ago

      0
      Speed of work, good connection to the mail server, speed search.
      Positive comment 4 months ago

      0
    5. Windows 10 has Mail and Calendar apps already built in.
      show more
      Microsoft Mail and Calendar vs Microsoft Office Outlook opinions
      Most users think Microsoft Mail and Calendar is a great alternative to Microsoft Office Outlook.
      coryroberts Really minimal functionality, does not even support Rules for Office 365 email addresses.
      Negative comment about 1 month ago

      0
      Bundled in win 10 and very simple to use. Great if you just read mail.
      Positive comment over 4 years ago

      1


    6. 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 Robustness and stability
      show more
      Claws Mail vs Microsoft Office Outlook opinions
      pros, cons and recent comments
      Claws Mail is email only, does not have many of the features of Outlook. Displaying HTML mail is sketchy at best.
      Negative comment almost 2 years ago

      -1
    7. 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.
      show more
      Postbox vs Microsoft Office Outlook opinions
      Some users think Postbox is a great alternative to Microsoft Office Outlook, some don't.
      for Office 365 only sync inbox
      Negative comment over 3 years ago

      0
    8. Bring your workspace together into one unified app. It’s everything your team has been looking for in a productivity and messaging app, but easier, and all with your email. Welcome to the shortest path to done.
      show more
      Spike vs Microsoft Office Outlook opinions
      pros, cons and recent comments
      Brings all of my communications into one place. Also allows for easier sending, saving, and sharing of files shared amongst my teams.
      Positive comment about 2 years ago

      0
    9. Mutt is a small but very powerful text-based mail client for Unix operating systems.
      Mutt vs Microsoft Office Outlook opinions
      pros, cons and recent comments
      It's a console based application without proper calendar support. A key feature of outlook
      Negative comment 3 months ago

      0
      mutt is email only, terminal based.
      Negative comment almost 2 years ago

      -1
      scholasticphilosopher Powerful configuration is possible with mutt, and vim in the terminal.
      Positive comment over 3 years ago

      -1
      • Free PersonalProprietary
      • Mac
      • Windows
      • Linux
      • Android
      • iPhone
      • Chrome OS
      • Android Tablet
      • iPad
      • Apple Watch
      BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.
      show more
      BlueMail vs Microsoft Office Outlook opinions
      Most users think BlueMail is a great alternative to Microsoft Office Outlook.
      rstefan much lighter, faster more responsive than outlook both in windows and Android. vivid and vibrant colors and ergonomic menu
      Positive comment about 1 year ago

      -1
    Showing 10 of 65 alternatives