KB5066373: Fixed: archiving fails for on-premises users

**Hotfix update for Exchange Server Subscription Edition RTM HU2: September September 8, 2025 (KB5066373)
Hotfix update (HU) 2 for Microsoft Exchange Server SE RTM was released on September 8, 2025. It includes fixes for non-security issues and may introduce new features. These fixes and features will also be included in later cumulative updates for Exchange Server SE.

https://learn.microsoft.com/en-us/Exchange/new-features/build-numbers-and-release-dates

Issues that this hotfix update fixes
​​​​​​​Online archiving fails for on-premises users in hybrid environment