Exchange Server 2019 articles, fixes and updates - letter H

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Exchange Server 2019 starts with letter H that have been released. The list is daily updated.

• 5026274 Hybrid Agent Validation fails after Extended Protection is enabled Q5026274 KB5026274 May 3, 2023
• 5014253 Hybrid Configuration Wizard update — April 2022 (KB5014253) Q5014253 KB5014253 April 20, 2022
• 4549689 HMA EvoSTS certificate rollover causes authentication prompts due to stalled key on worker process spawn (warmup phase) in Exchange Server 2019 and 2016 Q4549689 KB4549689 October 23, 2020
• 4515263 Hide the "Validate-MailFlowThroughFrontDoor" command for Exchange Server 2019 and 2016 Q4515263 KB4515263 October 23, 2020
• 4515257 Hash mismatch is reported for Exchange DLLs in the bin directory of Exchange Server 2019 and 2016 Q4515257 KB4515257 October 23, 2020
• 4499503 Heavy traffic because of restriction created when organization forms library has more than 500 items in Exchange Server 2019 and 2016 Q4499503 KB4499503 October 23, 2020