Kolab Community
Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.
Kolab Community Alternatives
The best Kolab Community alternatives based on verified products, community votes, reviews and other factors.
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/zimbra-alternativesZimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.
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/roundcube-alternativesWeb-based IMAP email client
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Try for freeWarm up your cold email inbox, and never land in spam anymore!
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/microsoft-exchange-server-alternativesMicrosoft Exchange Server is a messaging and collaborative software product developed by Microsoft.
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/kopano-alternativesSharing & communication software for business
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/iredmail-alternativesA fully fledged, free email server solution, an open source project (GPL v2).
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/google-workspace-alternativesGoogle's encompassing suite of cloud-based business apps.
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/horde-alternativesHorde Groupware is a free, enterprise ready, browser based collaboration suite.
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/nextcloud-hub-alternativesOn-premises, enterprise collaboration solution for documents, emails, calendars and more.
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/mailcow-alternativesAn open source mailserver suite.
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/sogo-alternativesSOGo is groupware server with a focus on scalability and open standards.
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/ox-open-xchange-alternativesOpen-Xchange Server 6 is the most advanced Linux based Groupware solution f.
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/rainloop-alternativesRainLoop is a web based email client.
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/obm-alternatives
OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.
