Alternatives to Citadel for all platforms with any license

Platforms

Show 6 less popular platforms
  • Zarafa icon

    Zarafa

    Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile phone support, Outlook "Look & Feel" webaccess and...

    Commercial Mac Windows Linux Web / Cloud

  • hMail Server icon

    hMail Server

    hMailServer 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...

    Open Source Windows

  • Atmail Email Server icon

    Atmail Email Server

    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. Features: Webmail Calendar Addressbook ...

    Commercial Linux Web / Cloud

  • eGroupWare icon

    eGroupWare

    Egroupware is a web based software for team collaboration, central data management and CRM: email client, online calendar, contact and task management, project and file...

    Open Source Linux Web / Cloud

    No features added Add a feature
  • 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...

    Free Windows Self-Hosted

    No features added Add a feature
  • Xeams icon

    Xeams

    Xeams is a secure & powerful mail server for Windows, Linux, Solaris, MacOSX and other flavors or UNIX, which supports SMTP, POP3, and IMAP. It includes a powerful...

    Free Personal Mac Windows Linux BSD

    No features added Add a feature
  • Know any more alternatives to Citadel?

    Suggest an application to this list
  • SmarterMail Mail Server icon

    SmarterMail Mail Server

    SmarterMail delivers Exchange-level email server software features for a fraction of the cost. With lower hardware requirements, superior stability and reduced...

    Freemium Windows

    No features added Add a feature

Citadel Comments

Echo echo ... Feels empty in here

Maybe you want to be the first to submit a comment about Citadel ? Just click the button up to your right!