PT KAI Partners With Zimbra to Strengthen Email Security and Data Governance

• PT KAI adopt Zimbra’s secure, on-premise email platform to meet data sovereignty and compliance needs
• Local partner support enables smooth integration with IT systems and national infrastructure
• Reflects Indonesia’s broader shift toward secure, self-managed digital transformation, particularly in the public sector 

Jakarta – July 22, 2025 – Zimbra, the world’s largest open-core email and collaboration platform, is strengthening Indonesia’s public sector resilience through its partnership with PT Kereta Api Indonesia (PT KAI).  

This partnership highlights a growing shift toward sovereign, secure digital infrastructure to meet Indonesia’s rising demand for data protection and compliance.

PT KAI, Indonesia’s state-owned railway operator, partnered with Zimbra to upgrade its legacy email platform with a more secure and scalable alternative. Zimbra’s Network Edition helps PT KAI gain full control over its communications infrastructure, ensure data security and compliance, and improve system reliability across a vast national network. The new system integrates with PT KAI’s existing IT environment, enabling better identity verification and operational coordination for more than 28,000 employees.

“Our partnership with Zimbra allows us to meet our current compliance requirements while preparing for future challenges,” said Bagit Airlangga, Manager of IT Application and Data Center, PT Kereta Api Indonesia. “With local deployment, full encryption, and seamless system integration, we are able to ensure operational efficiency across our national network.”

Marcus Teo, Chief Revenue Officer at Zimbra, added, “As institutions like PT KAI modernise their communication infrastructure under national data mandates, Zimbra is proud to provide sovereign-ready, secure email infrastructure tailored to Indonesia’s regulatory landscape. This partnership underscores our commitment to supporting both resilience and regulatory alignment with the public sector and beyond.”

These deployments highlight growing awareness among public institutions in Indonesia around the importance of digital self-reliance. As regulators stress the need for in-country data storage, Zimbra’s on-premises, open-standard platform offers a reliable path forward. Future phases are under consideration to expand the deployments further, both within the respective institutions and potentially across other regulated sectors. The partnership serves as a model for secure, policy-aligned transformation as Indonesia advances toward its digital economy goals.

Ivy Lee, APJ Vice President of Sales said, “Zimbra has seen significant growth in the Asia-Pacific region, specifically Southeast Asia, which drives close to a third of our global revenue. The company works closely with government bodies, financial services firms and SMBs across the region, with priority markets including Indonesia, the Philippines and Thailand.” 

“The company has protected over a million new mailboxes in the past two years. We intend to invest in its SEA expansion in the coming months, supporting the region’s digital modernisation efforts while helping organisations maintain control over their data and communication infrastructure,” added Ivy Lee, APJ Vice President of Sales. 

About Zimbra

Zimbra is a source-available commercial software platform founded in 2003, delivering secure, scalable, and extensible email and collaboration solutions through an open-core model. As the world’s largest open-core email and collaboration provider, Zimbra powers hundreds of millions of mission-critical mailboxes across 127 countries.

With a global footprint, Zimbra serves governments, financial institutions, universities, enterprises, and service providers, which rely on Zimbra to ensure secure, efficient, and compliant communications. 

Zimbra offers an integrated suite of collaboration tools, including secure email, calendar, file sharing, task management, Zimbra Chat for instant messaging, and collaborative editing through Zimbra Office. 

As a wholly owned subsidiary of U.S. technology solutions company Synacor, Zimbra is trusted as a low-risk alternative to Tier-1 OEMs. Its flexible deployment options, on-premises, in private clouds, or hybrid environments, make it the preferred choice for organisations that prioritise data sovereignty, regulatory compliance, and customizability.

For more information, visit www.zimbra.com