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Zimbra — Communication

Free

Zimbra (Communication): Zimbra is an open-source email and collaboration suite featuring secure email, calendar, file sharing, and data sovereignty. Pricing: Free. (data verified August 2026)

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About Zimbra

What Zimbra Does

Zimbra is an enterprise email and collaboration suite built on open standards. It provides secure email, calendar, and file sharing, allowing organizations to deploy on-premises, in the cloud, or in a hybrid environment. With complete data sovereignty, Zimbra ensures your data stays under your control.

Problem It Solves

Many organizations face challenges with data privacy, compliance, and vendor lock-in. Zimbra solves these issues by offering a low-risk alternative to proprietary systems, supporting open standards, and providing flexible deployment options that meet local compliance demands. It has over 20 years of proven stability, used by more than 6,000 organizations in 127 countries.

Who It's For

Zimbra is ideal for highly regulated institutions, including finance, government, and education, as well as any business seeking a secure, self-hosted email solution. If you need complete control over your data and a partner network for localized support, Zimbra is a strong fit. It may not be the best choice for small teams looking for a simple, ready-made SaaS solution without self-hosting.

Real Use Cases

Zimbra powers mission-critical communications for 1,000+ global institutions. It supports hybrid deployments, enabling migration from legacy systems. With over 3,000 partners, it provides localized deployment and support, ensuring compliance with regional data laws.

Key features

  • Open Standards — Built on open standards, ensuring compatibility and avoiding lock-in.
  • Data Sovereignty — Your data is yours; deploy on-primises or in the cloud, with full control.
  • Secure Collaboration — Email, calendar, and file sharing with enterprise-grade security.
  • Flexible Deployment — Choose cloud, on-premises, or hybrid to meet your needs.
  • Global Partner Network — 3,000+ partners for localized support and compliance.
  • Proven Stability — 20+ years of reliability powering mission-critical systems.
  • Multi-language Support — Available in 24 languages, serving 127 countries.

SaaSpartout Score

7.3 /10
Ease of use 6.5
Features depth 8.0
Value for money 8.5
Support quality 7.0
Integrations 7.5
Scalability 8.5
Documentation 6.5
Onboarding speed 5.5

Editorial score from our review methodology — not user ratings.

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Zimbra Pricing

Zimbra pricing: Free. Billing model: Free.

For comparison: the median starting price in Communication is $15.99/month, measured across 153 tools we track. See the full SaaS Pricing Index →

Zimbra Cloud Free Trial

Start with a free trial of Zimbra Cloud to explore features. No pricing details are listed; contact Zimbra for pricing based on your deployment needs.

On-Premises and Hybrid Licensing

For on-premises or hybrid deployment, Zimbra offers standard and professional editions with annual licensing. Pricing varies by number of users and edition; contact sales for a quote.

All plans include access to support and updates.

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Frequently asked questions

How much does Zimbra cost?
Zimbra offers a free trial for its cloud service. For pricing on on-premises or hybrid editions, you need to contact Zimbra or a partner for a quote, as costs vary based on deployment and user count.
What is Zimbra used for?
Zimbra is used for secure email, calendar, and collaboration, with a focus on data sovereignty and open standards. It's popular in finance, government, and education sectors.
Who is Zimbra best for?
Zimbra is best for organizations that need full control over their data, such as regulated institutions, and those preferring open-source solutions.
What are Zimbra alternatives?
Alternatives include Microsoft 365, Google Workspace, and ProtonMail. Zimbra stands out for its on-premises, open-source, and data sovereignty features.
Is Zimbra free?
Zimbra has a free trial for its cloud version. While there are open-source components, the full enterprise edition requires a paid license.
Does Zimbra offer on-premises deployment?
Yes, Zimbra supports on-premises, cloud, and hybrid deployments, allowing you to choose where your data resides.

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