This week, I was helping someone troubleshoot authentication issues when hybrid migration mailboxes to Exchange Online.
In order to migrate a mailbox successfully, the EWS endpoint virtual directory should have NTLM/Negotiate authentication method available.
You can quickly see what the endpoint is showing available by using this function:
Function Test-MigrationEndpointAuthentication($Url)
{
# Build URL
$Url = $Url.TrimEnd('.').TrimEnd('/').TrimEnd('.')… [ Continue reading ]