Alternatives to SOGo

An open-source groupware server with webmail, shared calendars and address books for organisations. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as SOGo.

  • Horde Groupware

    A self-hosted open-source PHP suite with webmail, calendar, contacts, tasks and notes.

    FreeOpen sourceWebSelf-hosted

    Horde Groupware is another self-hosted open-source groupware suite with webmail, calendar, contacts, tasks and notes, and CalDAV, CardDAV and ActiveSync sync, running on PHP.

  • Zentyal

    An Ubuntu-based Linux server with Active Directory compatibility, mail and network services for small offices.

    PaidProprietaryLinuxSelf-hosted

    Zentyal is a paid Ubuntu-based office server bundling mail and groupware with an Active Directory compatible domain controller, aimed at small offices.

  • Cyrus IMAP

    An open-source email, contacts and calendar server with IMAP, JMAP, CalDAV and CardDAV support.

    FreeOpen sourceLinuxSelf-hosted

    Cyrus IMAP serves mail, calendars and contacts over IMAP, JMAP, CalDAV and CardDAV from one server, but it has no bundled webmail.

  • Nextcloud Mail

    An IMAP webmail app that runs inside your own Nextcloud server.

    FreeOpen sourceWebSelf-hosted

    Nextcloud Mail provides IMAP webmail that sits next to Nextcloud contacts and calendar on your own server, but it needs a working Nextcloud installation.

  • Zoho Workplace

    An online suite from Zoho combining mail, team chat, meetings, file storage and office editors.

    FreemiumProprietaryWeb

    Zoho Workplace swaps a self-hosted server for a hosted suite with mail, chat, meetings and office editors, keeping data on Zoho's servers under a freemium plan.

  • Roundcube

    A self-hosted, browser-based IMAP webmail client written in PHP.

    FreeOpen sourceWebSelf-hosted

    Roundcube covers only the webmail part as a self-hosted PHP client, so shared calendars and ActiveSync sync would need to come from other software.

Also worth comparing

These listings name SOGo as their own alternative, so the relationship runs both ways.

  • Baïkal

    A lightweight self-hosted CalDAV and CardDAV server for syncing your own calendars and contacts.

    FreeOpen sourceSelf-hosted

    SOGo adds webmail and shared calendars on top of CalDAV and CardDAV, plus ActiveSync, but it needs existing mail and directory servers to integrate with.

  • Cypht

    Self-hosted open-source webmail that combines several email accounts and RSS feeds into one inbox.

    FreeOpen sourceWebSelf-hosted

    SOGo is a groupware server with webmail, shared calendars and address books for organisations, and needs existing mail and directory servers to integrate with.

  • Radicale

    A small self-hosted CalDAV and CardDAV server for keeping calendars and contacts on your own machine.

    FreeOpen sourceSelf-hosted

    SOGo is a larger self-hosted groupware server adding webmail and ActiveSync to CalDAV and CardDAV, but it needs existing mail and directory servers to integrate with.

  • SnappyMail

    A lightweight self-hosted webmail client, forked from RainLoop and rebuilt for modern browsers.

    FreeOpen sourceWebSelf-hosted

    SOGo provides webmail plus shared calendars and address books with ActiveSync support for organisations, but needs existing mail and directory servers to integrate with.

Similar software

Related functionality, not a direct replacement.