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ISPConfig vs Zimbra Collaboration
Annual estimate10 people, entry price
Free
Offer
No offer right now
No offer right now
Focus
Cloud Hosting
Business Email Hosting
Product
Open-source multi-server hosting control panel for managing web, email, DNS, and FTP services with reseller support.
Open source email and collaboration platform with calendaring, contacts, and chat.
Headquarters
Community Project
Frisco, Texas
Company size
2-10 employees
201-500 employees
Free options
Free plan, Free trial
Source updated
Oct 29, 2026
Oct 29, 2026
Capabilities
Plan capabilities
Integrations
Buyer fit
Best for
Company size
Security and switching
Security reviews
Security and migration
Case studies and sources
Case studies
Customer evidence
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