Zimbra Deploys Millions of Email Accounts Using MySQL

Zimbra is the leader in open source, next-generation messaging and collaboration software, supporting over 8 million paid mailboxes across tens of thousands of organizations. Their customers include well-known service providers, Fortune 1000 enterprises and leading education institutions. To ensure high levels of scalability, reliability, security and high-performance, Zimbra chose to build their solution on top of proven, high-quality open source components including Linux, Apache, MySQL and Ajax. Furthermore, Zimbra employs a modular architecture that enables horizontal scale-out of the server and databases, which is crucial for high-growth enterprise-scale deployments. Zimbra chose MySQL in particular because of its robustness, efficiency, and ease to embed in their solution.