Microsoft Exchange Server 2016 is reaching its end of life on October 14, 2025, marking the end of support and updates from Microsoft. This means no more security patches, bug fixes, or technical support, leaving systems vulnerable to security risks and compliance issues. Organizations still relying on Exchange 2016 should urgently plan their migration to newer versions like Exchange 2019 or consider a move to Exchange Online. Transitioning ensures continued support, enhanced security, and access to the latest features.
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