CrossBox AlternativesMail Servers & WebMail Providers like CrossBox

CrossBox is described as 'Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI' and is a Mail Server in the office & productivity category. There are more than 25 alternatives to CrossBox for a variety of platforms, including Linux, Web-based, Self-Hosted, Windows and Mac apps. The best CrossBox alternative is Roundcube, which is both free and Open Source. Other great apps like CrossBox are Google Workspace, Nextcloud Hub, mailcow: dockerized and Kolab Community.

CrossBox iconCrossBox
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Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.

More about CrossBox
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CrossBox alternatives page was last updated Jul 13, 2024
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  1. Roundcube icon

    Roundcube

     167 likes
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    Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.

    26 Roundcube alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Self-Hosted
    • PHP
    • Cloudron
    • Nextcloud
    Roundcube screenshot 1

    Roundcube Features

    1.  PGP Encryption
    2.  Dark Mode
    3.  WYSIWYG Support
    4. Docker icon  Support for Docker
    5. Nextcloud icon  Nextcloud integration
    6.  Hostable
    7.  IMAP Support

    Roundcube VS CrossBox

     

    • Roundcube is the most popular Self-Hosted alternative to CrossBox.

    • Roundcube is the most popular Open Source & free alternative to CrossBox.

    • Roundcube is Free and Open SourceCrossBox is Paid and Proprietary
  2. Google Workspace icon

    Google Workspace

     140 likes
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    Google Workspace delivers a cloud-based suite combining Gmail, Calendar, Meet & Drive to enhance collaboration through tools like Docs and Sheets. Offers secure storage options, custom domain emails, and robust management capabilities with 2FA and 24/7 support.

    53 Google Workspace alternatives

    License model

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Chrome OS
    Google Workspace screenshot 1

    Google Workspace Features

    1. Google Calendar icon  Sync with Google Calendar
    2.  Two-factor Authentication
    3.  Online collaboration
    4. Google Contacts icon  Google contacts integration
    5.  Sync with Google Drive
    6. Google Sheets icon  Google Sheets integration
    7.  AI-Powered
    8.  Built-in AI Assistant
    9.  Integrated Bulk Emailing

    Google Workspace VS CrossBox

     

    • Google Workspace is the most popular Web-based, Windows, Mac & Linux alternative to CrossBox.

    • Google Workspace is the most popular commercial alternative to CrossBox.

    • Google Workspace is Paid and ProprietaryCrossBox is also Paid and Proprietary
  4. Nextcloud Hub icon

    Nextcloud Hub

     21 likes
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    Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Self-Hosted
    Nextcloud Hub screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
    2.  Real time collaboration
    3.  Extensible by Plugins/Extensions
    4.  Cloud Sync
    5.  Photo Gallery

    Nextcloud Hub VS CrossBox

     
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    Screenshot
    Infomaniak kSuite icon
    Infomaniak kSuite

    The ethical collaborative solution. Increase your productivity with a 100% Swiss solution that brings together all the apps for teamwork.

    https://www.infomaniak.com
    Learn More
  6. mailcow: dockerized icon

    mailcow: dockerized

     42 likes
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    mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.

    22 mailcow: dockerized alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Linux
    • Self-Hosted
    mailcow: dockerized screenshot 1

    Top mailcow: dockerized Features

    1.  Mail Server
    2.  Self hosted mail
    3. Docker icon  Support for Docker
    4.  ActiveSync
    5.  Dark Mode
    6.  Ad-free
    7.  Two-factor Authentication
    8.  Mail Filtering
    9.  Email Organizer
    10.  Spam Filter
    11.  Support for Aliases
    12.  Modular System

    mailcow: dockerized VS CrossBox

     
  7. Kolab Community icon

    Kolab Community

     41 likes
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    Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.

    47 Kolab Community alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Linux
    • Online
    • Self-Hosted

    Kolab Community Features

    1.  Real time collaboration
    2.  Video Conferencing
    3.  Contacts
    4.  Voice Chat
    5.  CardDAV Support
    6.  IMAP Support
    7.  CalDAV Support
    8.  WebDAV Support

    Kolab Community VS CrossBox

     
  8. Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

     35 likes
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    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 reduces TCO compared to legacy platform vendors.

    44 Zimbra Collaboration Suite alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Linux
    • Online
    • Self-Hosted
    Zimbra Collaboration Suite screenshot 1

    Zimbra Collaboration Suite Features

    1.  Real time collaboration
    2.  ActiveSync
    3. Microsoft Active Directory icon  Active Directory integration

    Zimbra Collaboration Suite VS CrossBox

     
  10. Infomaniak kSuite icon

    Infomaniak kSuite

     4 likes
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    The ethical collaborative solution. Increase your productivity with a 100% Swiss solution that brings together all the apps for teamwork.

    77 Infomaniak kSuite alternatives

    License model

    • Free Personal • Proprietary

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    Infomaniak kSuite screenshot 1
    Infomaniak kSuite screenshot 2
    Infomaniak kSuite screenshot 3

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Cloud Sync
    2.  Real time collaboration
    3.  Calendar View
    4.  Works Offline
    5.  No Tracking
    6.  Ad-free
    7.  End-to-End Encryption

    Infomaniak kSuite VS CrossBox

     

    • Infomaniak kSuite is the most popular Android & iPhone alternative to CrossBox.

    • Infomaniak kSuite is Free Personal and ProprietaryCrossBox is Paid and Proprietary
    • Infomaniak kSuite is Privacy focused and LightweightCrossBox is not according to our users
  11. Microsoft Exchange icon

    Microsoft Exchange

     17 likes
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    Exchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers.

    43 Microsoft Exchange alternatives

    License model

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    • Online
    • Self-Hosted
    • Microsoft Office 365
    Microsoft Exchange screenshot 1

    Microsoft Exchange Features

    1.  Real time collaboration

    Microsoft Exchange VS CrossBox

     
  12. Axigen icon

    Axigen

     13 likes
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    Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).

    27 Axigen alternatives

    License model

    Application types

    Country of Origin

    • IT flagItaly
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Self-Hosted
    • Microsoft Office Outlook
    • Software as a Service (SaaS)
    Axigen screenshot 1

    Properties

    1.  Customizable

    Features

    1.  Real time collaboration
    2.  Shared Folders
    3.  Shared Calendar
    4.  Clustering
    5.  Customizable branding
    6.  CalDAV Support
    7.  Email Archiving
    8.  Clustering Support
    9.  Multiple languages
    10.  Delegated Administration

    Axigen VS CrossBox

     

    • Axigen is the most popular SaaS alternative to CrossBox.

    • Axigen is Paid and ProprietaryCrossBox is also Paid and Proprietary
  13. Kopano icon

    Kopano

     31 likes
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    Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.

    22 Kopano alternatives

    License model

    Application types

    Country of Origin

    • NL flagNetherlands
    • European Union flagEU

    Platforms

    • Online
    • Software as a Service (SaaS)
    Kopano screenshot 1

    Kopano Features

    1.  Real time collaboration
    2.  On-premises software
    3.  Shared Calendar
    4.  CalDAV Support
    5.  IMAP Support
    6.  S/MIME Support
    7.  POP3 Support

    Kopano VS CrossBox

     
  14. Kolab Now icon

    Kolab Now

     42 likes
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    Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

    80 Kolab Now alternatives

    License model

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Online
    • Software as a Service (SaaS)
    • DAVx5
    Kolab Now email

    Properties

    1.  Privacy focused

    Features

    1.  Support for Aliases
    2.  Real time collaboration
    3.  End-to-End Encryption
    4.  CalDAV Support
    5.  WebDAV Sync
    6.  CardDAV Support

    Kolab Now VS CrossBox

     
  15. Horde icon

    Horde

     29 likes
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    Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.

    42 Horde alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    Horde screenshot 1
    Discontinued

    The last release (5.2.22) was in September 2017.

    Horde Features

    1.  CalDAV Support

    Horde VS CrossBox

     
12 of 41 CrossBox alternatives