Compare software

SOGo vs Roundcube: catalog facts
SOGo	Roundcube
Free Free and open source; paid premium support is offered separately.	Free Free and open source webmail software.
Web, Self-hosted	Web, Self-hosted
Webmail, calendars and contacts in one self-hosted server CalDAV, CardDAV and ActiveSync support for native and mobile clients	Application-like webmail interface for any IMAP server Address book with LDAP connectors
Needs existing mail and directory servers to integrate with Outlook support depends on a separate CalDAV synchronizer	Requires a PHP web server and an existing mail server Only a webmail front end, not a mail server itself
Self-hosted	Self-hosted
Open source	Open source
License: GPL-2.0-or-later / LGPL-2.0-or-later	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.