Remove-ecpVirtualDirectory “ex01\ecp (Default Web Site)”
Remove-ecpVirtualDirectory “ex01\ecp (exchange back end)”
New-ecpVirtualDirectory -InternalUrl “” -ExternalUrl “”
New-ecpVirtualDirectory -InternalUrl “” -ExternalUrl “” -Website Name “Exchange Back End”
Remove-owaVirtualDirectory “ex01\owa (Default Web Site)”
Remove-owaVirtualDirectory “ex01\owa (exchange back end)”
New-owaVirtualDirectory -InternalUrl “” -ExternalUrl “”
New-owaVirtualDirectory -InternalUrl “” -ExternalUrl “” -WebSiteName “Exchange Back End”
 Enable Exchange On-Premises to use Integrated Windows Authentication
Get-EcpVirtualDirectory “ECP (Default Web Site)” | Format-List *Authentication*
Set-OwaVirtualDirectory “owa (Default Web Site)” -BasicAuthentication $True -WindowsAuthentication $True
Set-EcpVirtualDirectory “EX01\ecp (Default Web Site)” -BasicAuthentication:$True -WindowsAuthentication:$True
iisreset /noforce

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Microsoft MVP & MCT | Azure Service Delivery Lead with over 12 years of experience in Microsoft solutions and Professional services, Leading the Azure team to help our customers to build successful Azure practices, Blogger, Speaker, and Community leader. Focus on Azure, Cloud Security, Modern Workspace, AVD, Infrastructure as Code, Endpoint Management, Office 365, EMS.