Exchange Server 2016 & 2019 discontinued: the sovereign alternative is Souvera

Exchange support has ended

Since 14 October 2025 Microsoft no longer delivers security updates or bug fixes for Exchange Server 2016 and Exchange Server 2019. Companies still running these versions are operating their email infrastructure without protection.

What are the risks?

• Increased security risk: Attacks on unpatched systems rise sharply.
• Compliance violations: GDPR and audit requirements cannot be met with unpatched software.
• No support: Microsoft offers no help with problems or outages.
• Rising operating costs: Internal IT must keep old systems running at high cost and risk.

What alternatives exist?

Companies face a choice: upgrade to a new Exchange version or move to the cloud. An upgrade is not always sensible: on-premise systems remain expensive, complex and vulnerable.

Souvera: the secure Exchange alternative made in Germany

Souvera replaces Exchange with a fully managed email platform: a dedicated mail server per customer, import wizard for existing mailboxes, spam and virus protection included: operated in German data centers under the GDPR.

Conclusion

Do not wait until the next security incident. Switch to Souvera and secure your email communication: without US dependency and without compromise.