Exchange Server administrators are being cautioned about the importance of keeping their software updated, as Microsoft's Emergency Mitigation Service (EEMS) may stop functioning on versions that are significantly outdated. The service, which connects to the Office Configuration Service (OCS), is essential given the known security vulnerabilities of Exchange Server. Specifically, servers updated to any Cumulative or Security Update after March 2023 will continue to receive EEMS mitigations. There are concerns that older versions risk being unable to contact OCS, questioning the efficacy of the service for those who lag in updates.
Exchange administrators must update their Exchange Servers regularly, as Microsoft's Emergency Mitigation Service (EEMS) may cease functioning on significantly outdated versions.
EEMS, introduced in September 2021, relies on up-to-date Exchange versions to connect with the Office Configuration Service (OCS) for mitigation updates.
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