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<strong>Billions</strong> of <span>messages</span> <strong>Billions</strong> of <span>updates</span> <strong>Billions</strong> of <span>memories</span>

More than 500 million people trust Zimbra to share what matters most.

Billions of messages

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Built on the open source unified collaboration platform for

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135+ countries worldwide

500+ service providers worldwide

1000+ government & financial institutions

200K+ businesses worldwide use Zimbra in the cloud

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"Our activities in the social space are rooted in building relationships. Social destinations were created for this reason - connecting people and providing outlets to share. By maintaining our commitment to building these more personal relationships, we are able to provide our brand fans with an authentic social experience that is focused on connections, discussions and shared experiences." Mike DePaolo, Team Titleist Manager, Titleist

"Zimbra has enabled us to consolidate our hybrid email system into a single email solution. The performance of Zimbra is very good - emails are delivered faster; it supports a wide range of devices, platforms and email types." Pertisth Mankotia, Head of IT, Sheela Foam

"In two years, after buying the Zimbra license and paying for Zimbra support, we were paying less than we were with our legacy vendor. We had successfully achieved 100% ROI." Anand Rao, IT Manager, City of Garden Grove

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Ponemon Institute Research Report

The Open Source Collaboration Study: Viewpoints on Security and Privacy in the US and EMEA

More than 70% of IT professionals prefer open source to proprietary software for continuity, control. Download the full report for free.

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Product Announcement

Zimbra Collaboration 8.5

The latest release enables organizations to deliver secure collaboration in today's mobile workforce.

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Product Announcement

Zimbra Social 8.5

The latest release of Zimbra Social 8.5 helps today’s leading brands create unique social experiences. Expand your brand with a full suite of social applications and social networking tools.

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Zimbra's expanded support program meets the needs of a global customer and partner base.

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Top Events

  • Event Open 15 June 10, 2015

    Zimbra is sponsoring the Open 15 Conference, organized by our partner Kangaroot in Antwerp, Belgium on June 10, 2015.  Join us at our booth to discuss your email collaboration needs and learn about Zimbra as an open source alternative to Microsoft Exchange. In the afternoon, Zimbra’s Andrew Shingler will be presenting on the security and privacy benefits of using open source software for email collaboration.

  • Event Zimbra System Administration Training

    Zimbra System Administration, our flagship course that provides three days of comprehensive instruction, is being offered in several locations and languages this summer. Online or in person, find the course that’s right for you. See the summer schedule.

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