Kolab Now
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day...
Some of the top features or benefits of Kolab Now are: Privacy-focused, Open Source, Comprehensive Features, No Ads, and Cross-platform Support. You can visit the info page to learn more.
Best Kolab Now Alternatives & Competitors in 2025
The best Kolab Now alternatives based on verified products, community votes, reviews and other factors.
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Open-Source Alternatives.
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Secure email with absolutely no compromises. Get your free encrypted email account today.
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Get your encrypted mailbox for free.
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Smartsheet is an intuitive online project management tool enabling teams to increase productivity using cloud, collaboration, & mobile technologies.
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Google's encompassing suite of cloud-based business apps.
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mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.
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Zimbra 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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Easy to use end-to-end encrypted email. Secure and private email.
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Security extension to Mozilla Thunderbird and SeaMonkey
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Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.
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Riseup provides online communication tools for people and groups working on liberatory social change. We are a project to create democratic alternatives and practice self-determination by controlling our own secure means of communications.
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Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
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An open source mailserver suite.
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On-premises, enterprise collaboration solution for documents, emails, calendars and more.
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Web-based IMAP email client
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