Alternatives to SlideMail for all platforms with any license

  • Thunderbird icon

    Thunderbird

    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

  • 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...

    Free Web / Cloud Android iPhone Chrome OS iPad Chrome

  • K-9 Mail icon

    K-9 Mail

    K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration...

    Open Source Android Android Tablet

  • Mailbird icon

    Mailbird

    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

  • 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...

    Free Personal Windows

  • Postbox icon

    Postbox

    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

  • 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

  • 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

    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

  • 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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  • Inky icon

    Inky

    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

  • 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

  • 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

  • Newton icon

    Newton

    Newton (previously CloudMagic) is a fully featured mail client available for Android, iOS and macOS. Works for watch too. It's...

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

  • Polymail icon

    Polymail

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

    Freemium Mac iPhone iPad

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  • Spark icon

    Spark

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

    Free Mac iPhone iPad Apple Watch

  • FossaMail icon

    FossaMail

    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

  • Mail icon

    Mail

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

    Free Windows

  • Mail Wise icon

    Mail Wise

    Mail Wise – Read Just What You Need. The best conversation threads ever. A free email client that transforms messy emails into clean...

    Freemium Android

  • Unibox icon

    Unibox

    Unibox is a people centric email client that organizes your messages by person. It avoids having email like a to-do list. Features:...

    Commercial Mac

  • Boxer icon

    Boxer

    Boxer is a faster, smarter, secure email app that supports your Gmail, Exchange, Outlook, Yahoo, Hotmail, iCloud, Office 365, IMAP...

    Freemium Android iPhone Android Tablet iPad

  • TypeApp icon

    TypeApp

    TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various...

    Free Personal Android iPhone Android Tablet iPad Android Wear Kindle Fire

  • Aqua Mail icon

    Aqua Mail

    AquaMail is an email app for Internet and Exchange mail, for Android 4.0.3 and higher. Easy automatic setup for popular email...

    Freemium Android Android Tablet

  • MailMate icon

    MailMate

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

    Commercial Mac

  • GyazMail icon

    GyazMail

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

    Commercial Mac

  • myMail icon

    myMail

    myMail is the smart email app for managing all your accounts on iOS and Android. Use myMail to manage messages in your Gmail...

    Free Android iPhone Android Tablet iPad Apple Watch

  • 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

  • MailTamer icon

    MailTamer

    Don’t get buried in mountains of emails and let them get control of you and your inbox again! Slice, dice and shred your way to email...

    Commercial iPhone iPad

  • 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

  • Taskbox - Mail icon

    Taskbox - Mail

    Your inbox is already a task list - make it a great one. Taskbox allows you to manage your tasks and todos where they already are --...

    Commercial iPhone

  • EmailTray icon

    EmailTray

    EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and...

    Free Windows Android

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