Alternatives to HyperOffice Email Service for all platforms with any license

Platforms

Mobile

Web / Online

Indie / Classic

Other Platforms

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  • G Suite icon

    G Suite

    G Suite (formerly Google Apps for Work) is Google's encompassing selection of cloud apps for business, including customizable products under custom domain names. It features traditional office tools through Google Docs as well as...

    Commercial Mac Windows Linux Web / Cloud Chrome OS

  • 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

  • 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

  • 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

  • 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

  • atmail icon

    atmail

    Atmail allows you to choose between on-premises or cloud deployment. Features include email, contact, calendar, task, storage, synchronisation and provisioning. It's extensible through a RESTful API and allows easy rebranding...

    Commercial Mac Windows Linux Android iPhone Android Tablet iPad

  • Mercury Mail Transport System icon

    Mercury Mail Transport System

    The Mercury Mail Transport System is a mail server that sends and receives messages on behalf of a group of users on a machine or local area network. Messages from the outside world are received by Mercury and delivered to the users...

    Free Personal Windows

  • Axigen Mail Server, Calendaring & Collaboration icon

    Axigen Mail Server, Calendaring & Collaboration

    Axigen is an integrated, full featured, all-in-onem email, calendaring and collaboration platform, based on an innovative, proprietary technology, providing unmatched manageability for system administrators.

    Freemium Windows Linux BSD Self-Hosted Microsoft Office Outlook

  • 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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