Alternatives to Poste.io for all platforms with any license

Platforms

Desktop

Web / Online

Indie / Classic

Other Platforms

  • Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

    Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically...

    Freemium Linux Web / Cloud

  • mail.com icon

    mail.com

    mail.com provides its users with an customized selection of unique domains to pair with their desired address at no cost. Users can choose a domain that fits their lifestyle, profession, location, or personality, and through this...

    Free Web / Cloud

  • iRedMail icon

    iRedMail

    A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support. Easy, fast deployment in LESS THAN 1 MINUTE. View...

    Open Source Linux BSD Self-Hosted

    • One-click installer for email on your own web server.
      NeohSep 2016 Disagree   Agree
  • Mail-in-a-box icon

    Mail-in-a-box

    Take back control of your email with this easy-to-deploy mail server in a box. Mail-in-a-Box turns a fresh cloud computer into a working mail server. You get contact synchronization, spam filtering, and so on. On your phone, you...

    Open Source Self-Hosted ownCloud Roundcube

  • Microsoft Exchange Server icon

    Microsoft Exchange Server

    Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft. It is part of the Microsoft Servers line of server products and is widely used by enterprises using Microsoft infrastructure...

    Commercial Windows Web / Cloud

  • Foxmail icon

    Foxmail

    Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.

    Free Windows

  • Email.biz icon

    Email.biz

    Indian Webmail service allowing people to sign up for an @email.biz mail account. Cloud based Login and Multiple Login System give you safe and secure access to your POP / IMAP email accounts. Now access your email with any Web...

    Free Web / Cloud

  • hMail Server icon

    hMail Server

    hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world. It supports the common e-mail protocols (IMAP, SMTP and...

    Open Source Windows

  • OpenChange icon

    OpenChange

    OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols. Exchange is a groupware server designed to work with Microsoft Outlook, and providing features such as a...

    Open Source Linux

  • Expanding Communication icon

    Expanding Communication

    Turnkey Solutions for the Enterprise Cloud Installation, Configuration, and Management tools for enterprise email, collaboration, messaging, video conferencing, file sharing, and file transfers.

    Commercial Linux

  • IncrediMail icon

    IncrediMail

    Ad-supported email client for the Microsoft Windows operating system by IncrediMail Ltd. that offers the ability to add e-mail backgrounds, Emoticons, Ecards, Sounds, Animations, and 3D effects from directly within the client. The...

    Free Personal Windows

    • Warning Installs a browser hijacker that changes the homepage and default search engine and won't let you change back without uninstalling it: https://support.mozilla.org/en-US/questions/933191
  • Xeams icon

    Xeams

    Xeams is a secure & powerful mail server for Windows, Linux, Solaris, MacOSX and other flavors or UNIX, which supports SMTP, POP3, and IMAP. It includes a powerful spam/junk filtering engine that elimates up to 99% of junk email...

    Free Personal Mac Windows Linux BSD

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  • iMail icon

    iMail

    Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited mail accounts, storage, attachment size, custom logo. Free for...

    Free Windows Self-Hosted

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