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Starting from $5.40 per user per month
Best Zimbra Collaboration Alternatives ranked by AI · updated May 2025
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Zimbra Collaboration is a leading open-source email and collaboration platform.
Price: Free and paid plans available
Top 6 Zimbra Collaboration alternatives
Google Workspace is a suite of cloud computing, productivity and collaboration tools, software and products developed by Google.
Starting from $6/user/month
Kolab Community is an open-source groupware solution that includes email, calendar, contacts, tasks, and more.
Microsoft Exchange Server is a popular email and calendaring server software developed by Microsoft.
Pricing varies based on the edition and deployment model.
iRedMail is a full-featured mail server solution that supports email services like SMTP, IMAP, POP3, and webmail.
Free and Paid versions available
hMailServer is a free, open source mail server for Microsoft Windows. It supports the common email protocols (IMAP, SMTP, and POP3) and...
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