Forum Discussion
Exchange SE 15.2.2562.46: MRSProxy returns HTTP 401 after successful NTLM authentication
Hello, Anonymization note: The domain names contoso.com and contoso.local, the server name EXCH-SE-01, and the account name CONTOSO\MigrationAccount used in this post are anonymized placeholders....
Exactly the same issue in our environment. Single Exchange onprem edition in hybrid setup.