As the tech world spins faster than ever, it’s time to wave goodbye to the stalwart heroes of email management: Exchange Server 2016 and 2019. With these versions reaching their end of life, organizations worldwide are pondering their next move. Let’s dive into what this means and why moving to Exchange Online or the new Exchange Server Subscription Edition (SE) could be the smartest path forward.

The Clock is Ticking

Exchange Server 2016 and 2019 have served us well, but their time is nearing an end. With support winding down, the risks and costs associated with using unsupported software increase. Security vulnerabilities, lack of updates, and compliance issues become pressing concerns. By October 14, 2025, both versions will no longer receive critical security patches or updates from Microsoft. The urgency to migrate isn’t just about staying current—it’s about ensuring your organization remains secure and efficient.

Coexistence and Transition Planning

Migrating from Exchange Server 2016 or 2019 doesn’t have to be a one-shot leap into the unknown. Coexistence periods allow organizations to run multiple versions of Exchange simultaneously. This can ease the transition by providing time to test and validate the new environment without a hard cutover. Establishing a coexistence period, typically lasting a few months, helps in ironing out any kinks and ensuring a smoother migration.

Embracing the Cloud: Office 365

Office 365 offers a plethora of benefits that make it an attractive option. With a cloud-based solution, you get automatic updates, robust security features, and seamless integration with other Microsoft services. It’s a one-stop shop for productivity, reducing the overhead of maintaining on-premises hardware. Plus, the flexibility of cloud storage means you can scale up or down as your needs change.

The New Kid on the Block: Exchange Server SE

For those who prefer to keep things on-premises, Exchange Server SE provides a fresh alternative. Designed with the latest features and updates, it ensures you won’t miss out on modern capabilities. It’s particularly appealing to organizations with strict data residency requirements or those that need full control over their email infrastructure. With Exchange Server SE, you get the best of both worlds: on-premises control with modern functionality.

Conclusion: Choose Your Hero

In the end, the decision boils down to your organization’s unique needs and future goals. While Office 365 provides unparalleled flexibility and security in the cloud, Exchange Server SE offers a modern, on-premises solution that keeps you in control. Whichever path you choose, making the move from Exchange Server 2016 and 2019 is essential to stay ahead in the ever-evolving digital landscape. Ready to embark on this journey? Your future email success story starts by contacting us to help you make the right decision for your organization.