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    CrossBox Alternatives

    CrossBox is described as 'Email With a modern and intuitive interface Chat Real-time Text, Audio & Video chat with file sharing File storage With a document previewer File sharing File and document sharing within the company, privately, or publicly Contacts Personal and company-wide' 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, Online / Web-based, Windows, Self-Hosted solutions and Mac. Most alternatives are Mail Servers and WebMail Providers. The best alternative is Roundcube, which is both free and Open Source. Other great apps like CrossBox are Google Workspace (Paid), Zoho (Paid), mailcow: dockerized (Free, Open Source) and Microsoft 365 (Paid).

    This page was last updated Oct 25, 2021

    1. OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.

      Discontinued

      The GitHub repository has been archived and the last update was in 2017.

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    2. Virtual Office, Online Office, Digital Learning Space, Online Groupware - ContactOffice, Keep a virtual office on the web. Share documents, contacts, calendar, tasks, ... with clients, students, suppliers, friends or family.
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      • Mac
      • Windows
      • Linux
      • Android
      • iPhone
      • Android Tablet
      • iPad
      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 and white-labelling.
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      • Windows
      • Linux
      • Self-Hosted
      Email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP policies for accountable outbound email delivery. No over hype. It just delivers.
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    3. SMBMail is a groupware server built with a focus on scalability and open standards. It provides secure, enterprise-style email, calendar & collaboration without the high cost.
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    4. EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.
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    5. MailShogun is a plugin that creates domain emails easily. You can pick between your professional and regular e-mail address when sending or receiving from your regular g-mail account. One of the cheapest mail forwarding services you can find on the web.
    6. Established in January 2000, Alinto is one othe principal french editors and operators of collaborative messaging and unified communications. Alinto manages over 4000 areas of professional messaging and more than a million users in 5 countries.
    7. HyperOffices is a Microsoft Exchange alternative with all the messaging features growing business need - custom business email; Outlook email; shared Outlook contacts, calendars and tasks; web and mobile email; Outlook synchronization; shared calendars, contacts, tasks and...
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    8. DeskNow is a fully featured and easy to use mail and collaboration server with build-in antivirus and antispam. SyncML for mobile devices is separately licensed.
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    Showing 40 of 42 alternatives