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Zammad vs Zimbra Collaboration Clear Offer
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Evidence sheet Focus
Help & Customer Support
Business Email Hosting
Product
Zammad is an open-source web-based helpdesk and ticketing system that manages customer communication across email, chat, phone, and social media channels.
Open source email and collaboration platform with calendaring, contacts, and chat.
Headquarters
Berlin, Germany
Frisco, Texas
Company size
11-50 employees
201-500 employees
Source updated
Nov 2, 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
Open the full comparison Plan limits, integrations, security reviews and case studies for every product you compare.
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