CrossBox Alternatives
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, Online / Web-based, Self-Hosted solutions, Windows and Mac. The best alternative is Google Workspace. It's not free, so if you're looking for a free alternative, you could try Roundcube or Nextcloud Hub. Other great apps like CrossBox are mailcow: dockerized, Zimbra Collaboration Suite, Microsoft 365 and Kolab Community.
CrossBox alternatives are mainly Mail Servers but may also be WebMail Providers or Calendar Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of CrossBox.- Paid • Proprietary
- Mail Server
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
Google Workspace
Do you think this is a good alternative?YesNo- Paid • Proprietary
- Mail Server
- Team Collaboration Tool
- Calendar App
49 alternatives to Google Workspace- Mac
- Windows
- Linux
- Online
- Chrome OS
Google Workspace (formerly Google Apps for Work / G Suite) 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 communication and time...
Google Workspace Features
Roundcube
Do you think this is a good alternative?YesNo- Free • Open Source
- WebMail Provider
- Email Client
28 alternatives to Roundcube- Self-Hosted
- PHP
- Cloudron
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.
Roundcube Features
Nextcloud Hub
Do you think this is a good alternative?YesNo- Free • Open Source
- Team Collaboration Tool
- Calendar App
53 alternatives to Nextcloud Hub- Self-Hosted
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.
Nextcloud Hub Features
mailcow: dockerized
Do you think this is a good alternative?YesNo- Free • Open Source
- Mail Server
- WebMail Provider
18 alternatives to mailcow: dockerized- Linux
- Self-Hosted
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.
mailcow: dockerized Features
Zimbra Collaboration Suite
Do you think this is a good alternative?YesNo- Freemium • Open Source
- Mail Server
- Calendar App
- Team Collaboration Tool
43 alternatives to Zimbra Collaboration Suite- Linux
- Online
- Self-Hosted
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.
Zimbra Collaboration Suite Features
Microsoft 365
Do you think this is a good alternative?YesNo- Paid • Proprietary
- Mail Server
- Project Management Tool
87 alternatives to Microsoft 365- Online
- Software as a Service (SaaS)
Microsoft 365 is a subscription-based software services that licenses Microsoft Office products for on-premise or cloud-based use.
Microsoft 365 Features
Kolab Community
Do you think this is a good alternative?YesNo- Freemium • Open Source
43 alternatives to Kolab Community- Linux
- Online
- Self-Hosted
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.
Kolab Community Features
Horde
Do you think this is a good alternative?YesNo- Free • Open Source
- WebMail Provider
40 alternatives to Horde- Online
- Self-Hosted
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.
Horde Features
DiscontinuedThe last release (5.2.22) was in September 2017.
Kolab Now
Do you think this is a good alternative?YesNo- Paid • Open Source
- Calendar App
- Mail Server
- Cloud Storage Service
78 alternatives to Kolab Now- Online
- Software as a Service (SaaS)
- DAVdroid
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.
Kolab Now Features
Kopano
Do you think this is a good alternative?YesNo- Paid • Open Source
- Mail Server
- Email Client
- Mobile Device Management (MDM) Tool
25 alternatives to Kopano- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- Windows Phone
- iPad
- Self-Hosted
- Microsoft Office Outlook
- S/MIME
- Software as a Service (SaaS)
Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.
Kopano Features