Thunderbird Alternatives for Windows

    There are many alternatives to Thunderbird for Windows if you are looking for a replacement. The best Windows alternative is eM Client, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to Thunderbird and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Thunderbird are Claws Mail (Free, Open Source), Mailbird (Paid), Microsoft Office Outlook (Paid) and SeaMonkey (Free, Open Source).

    This page was last updated Sep 27, 2021

    1. eM Client is a full featured email client with a clean and efficient user interface.
      show more
      eM Client vs Thunderbird opinions
      Most users think eM Client is a great alternative to Thunderbird.
       all • positive • negative      relevance • date
      Thunderbird is brutal, emClient is clean, neat, well thought out, etc. It works with Exchange, Gmail, etc. Everything in one install. Drop in replacement for Outlook at a fraction of the price for Business.
      Top positive comment  about 4 years ago

      5
      podecre Best solution for people who use Google Calendar.
      Top positive comment  over 5 years ago

      -2
      limited to only 2 accounts
      Top negative comment  about 2 months ago

      1
      eM client is clean and neat, it's has more built-in functions than Thunderbird. This is a great alternative for Mac and Windows users who care about the software user interface.
      Positive comment 10 months ago

      0
      Slow on rendering most email. My version of it doesn't show well unread new message : I can't tell if it's too slow or if it just fails to display them at all.
      Negative comment about 2 years ago

      3
      I'm still testing it but I like what I see. The interface. I like balance, not minimalism nor clutter. I am still using Thunderbird and have not decided yet. Also it is for personal use, therefore I need a free program with at least 3 free mailboxes.
      Positive comment over 2 years ago

      -6
      Renders HTML mail very slowly on Win10
      Negative comment over 3 years ago

      9
      Show more comments
      7 of 9 comments
    2. 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 Thunderbird opinions
      Most users think Claws Mail is a great alternative to Thunderbird.
      3psilon It's a good, lightweight alternative, but the UI is clunky and it misses HTML message composing. You have been warned!
      Top positive comment  about 4 years ago

      14
      jodumont Despite the style, Claws is super fast and allow you to programs it with Perl and Python which is great for marketing automation.
      Top positive comment  about 2 years ago

      8
      No HTML compose is the only reason I don't switch to it. We're not in 1980 anymore.
      Top negative comment  about 3 years ago

      13
      very good alternative under linux. I can not say the same under windows since fancy plugin is very buggy.
      Positive comment over 1 year ago

      -1
      Much faster than thunderbird which cloaks on weak machines.
      Positive comment almost 4 years ago

      6
      Small and quick and not flooded with choices!
      Positive comment over 5 years ago

      2
      I like it because of easily customizable key bindings.
      Positive comment over 5 years ago

      0


    3. 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 Thunderbird opinions
      Some users think Mailbird is a great alternative to Thunderbird, some don't.
      Mailbird is missing most of the features which Thunderbird offers, like encryption and plugins
      Negative comment almost 6 years ago

      9
      pasiojunk Clean interface, much faster than Thunderbird. One touch unsubcribe is a nice touch and adding new accounts is a breeze
      Positive comment 5 months ago

      0
      Great design. Great features
      Positive comment 6 months ago

      0
      thiztatyanarein asone user said "Mailbird is missing most of the features which Thunderbird offers, like encryption and plugins" more than year ago: now Thunderbird is dead, no development, no plugins (never was a lot and now even less as they are following the plan as to with Firefox. Is dead. Loved thunderbird, not a fan of Mailbird! but I can't stand oputlook
      Positive comment over 4 years ago

      0
    4. Microsoft Outlook, part of the Microsoft Office Suite (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
      show more
      Microsoft Office Outlook vs Thunderbird opinions
      Some users think Microsoft Office Outlook is a great alternative to Thunderbird, some don't.
      outlook is clumsy and bloated and does nothing well. tbird does one thing and well.
      Negative comment over 1 year ago

      3
      It works. Much less buggy. Better integration with Windows. Encryption/Signing.Works over remote desktop without losing pieces of itself. Search is crappier though.
      Positive comment over 1 year ago

      2
      Eyji As a Firefox user, I have tried to love Thunderbird but it just can't compete with Outlook, IMHO.
      Positive comment over 2 years ago

      2
      Outlook do not support RSS
      Negative comment about 5 years ago

      0
    5. Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing in one application. Itis built on the open source Mozilla Gecko engine, the same code which underlies Thunderbird and is the base for the Firefox browser.
      show more
      SeaMonkey vs Thunderbird opinions
      Almost everyone thinks SeaMonkey is a great alternative to Thunderbird.
      SeaMonkey is both a WEB BROWSER and EMAIL CLIENT. It's the successor of Mozilla Application Suite or Netscape Communicator, resp. Further it includes also a news client program, an HTML editor (SeaMonkey Composer) and an IRC client (ChatZilla).
      Positive comment almost 4 years ago

      18
      apostolfaliagas It has all of Thunderbird's features and many more.
      Positive comment over 3 years ago

      13
      More of a web browser than an email client
      Negative comment over 2 years ago

      -6


    6. 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 Thunderbird opinions
      This alternative is disputed. Mailspring is still a legitimate alternative to Thunderbird, but it might have issues that some users think are important.
      riskaasmara Simple, more streamlined UI and easily customizable.
      Top positive comment  over 2 years ago

      3
      3psilon Great alternative, especially for casual users. Simple, streamlined UI, feels fresh.
      Top positive comment  over 3 years ago

      0
      Need to create an account on a third-party company to access your email.
      Top negative comment  about 3 years ago

      48
      peterbro nice interface (if you are talking about the feature, kcontact/kmail is the best, but this has a nice interface)
      Positive comment over 3 years ago

      -2
      Very simple, perfect IU and possibility to follow what happen to your emails.
      Positive comment over 3 years ago

      -2
      bengotow Supports Linux and all IMAP providers, offers shortcut customization, extensible via plugins.
      Positive comment almost 4 years ago

      -3
    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 Thunderbird opinions
      Most users think Postbox is a great alternative to Thunderbird.
      JackVegas If you're using Windows 10 or a Mac, Postbox is hard to beat. I found myself so impressed with the trial that I had to buy the license in the end. It started out looking a lot like Thunderbird, but it really has come into its own over the past few years to the point where Thunderbird has nothing on Postbox.
      Positive comment over 1 year 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 Thunderbird opinions
      Some users think BlueMail is a great alternative to Thunderbird, some don't.
      bluemail pushes all your mail into their clud making it insecure
      Negative comment almost 2 years ago

      21
      It works on Android, but is not so powerfull.
      Positive comment about 2 years ago

      0
      clear, easy to use lots of flexibility
      Positive comment almost 3 years ago

      -2
    8. Mutt is a small but very powerful text-based mail client for Unix operating systems.
      Mutt vs Thunderbird opinions
      Most users think Mutt is a great alternative to Thunderbird.
      Thunderbird users want a GUI mail application. Mutt is a command line mail application. They are both good and both popular, but very much apples and oranges.
      Negative comment over 1 year ago

      11
    9. Windows 10 has Mail and Calendar apps already built in.
      show more
      Microsoft Mail and Calendar vs Thunderbird opinions
      Most users think Microsoft Mail and Calendar is a great alternative to Thunderbird.
      kolappannathan It runs in background unlike Outlook and other email clients.
      Positive comment 8 months ago

      0
    Showing 10 of 47 alternatives