Alternatives to Mailbird 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 Mozilla Firefox. It supports POP (storing mail locally on your hard drive so that it can be accessed...

    Open Source Mac Windows Linux BSD Haiku

    • It's open source & based on Firefox engine which is known for it's brand !! Guest • Nov 2016 Disagree   Agree
  • Inbox by Gmail icon

    Inbox by Gmail

    Built on everything that we've learned from Gmail, Inbox is a fresh start that goes beyond email to help you get back to what matters. Bundles, because some messages just belong together. Promotions are now neatly...

    Free Web / Cloud Android iPhone Chrome OS iPad Chrome

  • 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

    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

  • Evolution icon


    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 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

  • Geary icon


    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

  • Nylas Mail icon

    Nylas Mail

    Nylas Mail is an email client designed to be friendly and easy to use but also powerful and highly extensible. It works "out of the box" with all the major email services like Gmail, Yahoo and iCloud and the lightweight...

    Freemium Mac Windows Linux Web / Cloud Self-Hosted

    • simple, fast, elegant, and integration with OS Guest • May 2016 Disagree   Agree
  • 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 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 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

  • Inky icon


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

    Commercial Mac Windows Android iPhone Android Tablet iPad

  • 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 threading, MIME support (including RFC2047 support for encoded headers), PGP/MIME (RFC2015), various...

    Open Source Mac Windows Linux Xfce

  • Spark icon


    E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.

    Free Mac iPhone iPad Apple Watch

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  • Polymail icon


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

    Freemium Mac iPhone iPad

  • Newton icon


    Newton (previously CloudMagic) is a fully featured mail client available for Android, iOS and macOS. Works for watch too. It's based on cloud so you can connect it to any account and get fast search, push notifications, read...

    Commercial Mac Android iPhone Android Tablet iPad Apple Watch ... Android Wear

  • FossaMail icon


    FossaMail is an Open Source, Mozilla Thunderbird -based mail, news and chat client for Windows and Linux, brought to you by the Pale Moon developers. FossaMail: Is built from source with compiler optimizations...

    Open Source Windows Linux

  • Mail icon


    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

  • 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

  • Pantheon Mail icon

    Pantheon Mail

    Pantheon Mail is a free open source email client forked by the elementary OS community from Geary . Features Modern and straightforward interface ...

    Open Source Linux elementary OS

  • 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

  • MailMate icon


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

    Commercial Mac

  • SlideMail icon


    Making email better through artificial intelligence.

    Free iPhone

  • 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 Mac Windows Linux Firefox

  • TypeApp icon


    TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple...

    Free Personal Android iPhone Android Tablet iPad Android Wear Kindle Fire

  • 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

  • Columba icon


    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.
  • Microsoft Mail and Calendar icon

    Microsoft Mail and Calendar

    The Mail and Calendar apps help you stay up to date on your email, manage your schedule and stay in touch with people you care about the most. Designed for both work and home, these apps help you communicate quickly and focus on...

    Free Windows

  • Mulberry icon


    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.
  • nPOPuk icon


    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.

Mailbird Comments

best mail client ever 1 Helpful

Positive Comment by insidesystem
about Mailbird Nov 2016

This is application is combination of 3 most important things which make any app success: user-friendly, lightweight, and concentrated on feature what it do.
Mailbird much lighter then thunderbird and can easly process very big amounts of data much better then any alternative for windows in market for this time. It uses 4x less memory and just 0-1% of CPU when working in background (if compare to thunderbird with the same amount of email boxes, and emails). It uses only 160MB of storage to save all mails on disk, for example thunderbird at the same time uses up to few GB's. With this tool you can be really productive with email processing. You should try. Free version to be clear very limited, but paid one cost some money, but it worth it!


sorry to leave :-( 2 Helpful

Comment by tomazpogacar
about Mailbird Jul 2016

since Mailbird cancel three accounts in free version, I have to go... :-(


only 1 account usable for free version!

Comment by bobalazs
about Mailbird Jul 2016

Mailbird was my goto for email application, until with an update free email service got limited to only one email account.

[Edited by bobalazs, July 08]


Thank you 2 Helpful

Comment by Mailbird
about Mailbird Nov 2015

Wow, on behalf of the entire Mailbird team: Thank you all for your glowing reviews and supportive comments. We are thrilled that so many of the people that use Mailbird like it enough to share it!


Awesome email client! 1 Helpful

Positive Comment by saultresidder
about Mailbird Sep 2015

Mailbird has it all. Excellent handling of multiple email accounts, as well as the amazing integration of other productivity apps, such as Evernote, Todoist, Sunrise calendar and the
With regards to your prediction that Microsoft will purchase this great Email client, I think they would be stupid not to!

Great work!!


WOW! 1 Helpful

Positive Comment by michaelhoneth
about Mailbird Sep 2015

I just got a new laptop with Windows 10, which I love; but I don't like Microsoft Mail, which doesn't have a unified inbox. I also wasn't happy with Outlook. I found reviews of Mailbird online, while looking for a clean, comprehensive app, and so far I am incredibly impressed with it. It is intuitive, and perfect for the way I think and work.


Where have you been Mail Bird?

Positive Comment by leestyron
about Mailbird and Thunderbird Sep 2015

I have been using Thunderbird for years and have been searching for something better for about as long. Before that I used Eudora or Outlook. Wasn't impressed with those either.
My main issue is Tbird is glitchy and and only 32 bit. When I have computer trouble and have to replace it, I loose all my email history. It does not backup like they say it should. Trust me, I have tried many many times.
I keep my business records and conversations on there and that history is very important to me.
I just upgraded to Win 10, and Tbird is not liking it very much. I stumbled on the link for Mail Bird while searching for a 64 bit version of Tbird, which does not exist that is supported.
So far, Mail Bird looks great. Works great for my work flow. Breath of fresh air to say the least.
So far I am a very happy customer. :) My searching is finally over.
THANK YOU So much!!!


Well Done

Positive Comment by jeffmullins
about Mailbird Sep 2015

While looking for a new email client, I came across Mailbird. I have not been disappointed


Best alternative to Outlook to manage exchange and cloud based email

Positive Comment by bradleywatson
about Mailbird Sep 2015

Been using for a week and loving it


Looks promising!!

Positive Comment by la_twins
about Mailbird Sep 2015

Just downloaded and started using Mailbird but am happy thus far. Pretty slick front end, and responsive customer support.


I Recommend Mailbird

Positive Comment by Yuri_Volkov
about Mailbird Sep 2015

If you are just struggling to use programs apps and webpages as a basic user, Mailbird will really help you set up your IMAP downloading from Gmail pretty much automatically. I also love the global inbox and multiple accounts features.


Finally! A well designed, powerful email client!

Positive Comment by bsabath
about Mailbird and Squirrelmail, Mail, Microsoft Office Outlook Sep 2015

I have my own personal email address which is hosted by my webhost. For years, I've accessed email via squirrel mail, which as you may know, is very old school, cumbersome, and not very powerful. It is hard to search through existing messages, and it renders many html based messages very poorly.
I recently got a new Windows 10 Laptop, and vowed I would find a new way to view my email. I tried the Mail app that comes with Windows 10 - very weak and kludgy. I tried Outlook - very powerful, but overly complex, and it still does a terrible job of rendering HTML graphics (apparently, it uses MS Word to render messages. WHAT!!?). I looked through the "Microsoft store" and "App Explorer" that Windows 10 provides. Searching "mail" brought me to virtually nothing useful.

Finally, I googled "Best Windows email client" (I should have done that first). Mailbird was mentioned in virtually every reference. I downloaded and installed it. Turns out, it was exactly what I was looking for.


Mailbird: number one

Positive Comment by boukebuis
about Mailbird Sep 2015

I was looking for a fast e-mail client with a modern look and feel, which I can use for multiple accounts. I found via Internet several alternative e-mail clients, but Mailbird attracted me most. I installed the program and I am very satisfied with the use.

The apps are very handy and I use them every day.


Loving Mailbird

Positive Comment by kirknurse
about Mailbird Aug 2015

It's a great alternative mail client that is light as well as robust. The functionality of Outlook and Thunderbird with a modern interface.