Alternatives to Postler 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

  • Mailbird icon


    The Best Email Client for Windows 7, 8 & 10 - Mailbird is more than just another email client. It's an all-in-one...

    Freemium Windows

  • eM Client icon

    eM Client

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

    Free Personal Windows

  • Opera Mail icon

    Opera Mail

    Opera Mail powerfully organizes, indexes, and sorts your messages. It has spam filtering (both automated and Bayesian), supports...

    Free 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

  • 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

  • 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

  • Airmail icon


    Airmail is a lightweight and lightning fast mail client for Mac. Feature list: Accounts: - Unified Inbox and folders - Multi...

    Commercial Mac iPhone iPad Apple Watch

  • Sylpheed icon


    Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on many systems such...

    Open Source Mac Windows Linux BSD

  • 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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  • Sparrow icon

    Sparrow Discontinued

    Sparrow is a minimalist mail application for Mac. It was designed to keep things simple and efficient. No fancy stuff here... just...

    Commercial Mac iPhone

  • 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

  • Mail icon


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

    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...

    Free Web / Cloud Android iPhone Android Tablet iPad

  • 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

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  • iRedMail icon


    A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD...

    Open Source Linux BSD Self-Hosted

  • 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

  • Mulberry icon

    Mulberry Discontinued

    Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and...

    Open Source Mac Windows Linux

  • Koma-Mail icon

    Koma-Mail Discontinued

    Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run...

    Free Windows

  • ProfiMail icon


    ProfiMail is a powerful email client for mobile phones. It allows you to read your mail on the go, and send text with attachments...

    Freemium Windows Mobile Android S60 Android Tablet

Postler Comments

A shame

Comment by mibli
about Postler and Geary Jul 2014

It looks like a really promising software.
Geary which it transferred it's development to is huge and bulky, much like Inbox2.
Hoped for a little, handy mail client :(


Development ceased

Comment by wpost
about Postler Nov 2012

Postler's Launchpad page states that "Development on Postler has ceased".