Citadel Alternatives
Citadel
Is a collaboration suite (messaging and groupware). It is designed to run on open source operating systems such as Linux or BSD. In order to modernize the Citadel platform for the Internet, the Citadel/UX developers added functionality such as shared calendars, instant messaging, and built-in implementations of Internet protocols such as SMTP, IMAP, Sieve, POP3, GroupDAV and XMPP. All protocols offer OpenSSL encryption for additional security.
Users of Citadel/UX systems also have available to them a web-based user interface which employs Ajax style functionality to allow application-like interaction with the system.
Citadel uses the Berkeley DB database for all of its data stores, including the message base.
Best Open Source Citadel Alternatives
For the best Citadel alternative check out these alternatives which will work with your device & platform. There are several Citadel-like software that you might want to check as well.
Kolab Community
FreemiumOpen SourceLinuxWebSelf-HostedKolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.
Features:
- CalDAV
- CardDAV
- Real time collaboration
- Support for WebDAV
Zimbra Collaboration Suite
FreemiumOpen SourceLinuxWebSelf-HostedZimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra...
Features:
- Active Directory integration
- ActiveSync
- Email Server
- Real time collaboration
- Team Collaboration
hMail Server
FreeOpen SourceWindowshMailServer 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...
Features:
- Convert images to PDF
- Support for IMAP
- Email Server
- POP3 Support
- SMTP
- SMTP integration
OX Open-Xchange
FreeOpen SourceLinuxWebSelf-HostedOpen-Xchange Server 6 is the most advanced Linux based Groupware solution f. Open-Xchange Server 6 is superior in the following areas: • Open-Xchange Server 6 offers...
Features:
- Calendar integration
- German
- Group Mail
- Email Server
- Real time collaboration
- Support for WebDAV
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Citadel Reviews
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