Basic Authentication Deprecation in Exchange Online – May 2022 Update

ConnectorsTeamScrnx - sample script for you to work with. If you need more help, open a support ticket. This isn't the best place to get help for something like this. 

Install PowerShell Gallery | MSAL.PS 2.5.0.1 

• Run the sample script, update the highlighted parts.

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User token sample:

$login = "https://login.microsoftonline.com/"

$tenantId = your_tenant_id

$scopes = New-Object System.Collections.ObjectModel.Collection["string"]

$scopes.Add("https://outlook.office365.com/.default")

$authorty=$login + $tenantId

$clientId=your_client_app_id

$authenticationResult = Get-MsalToken -ClientId $clientId -TenantId $tenantId -Scopes $scopes -RedirectUri your_redirect_url

$headers = @{

"Authorization" = ("Bearer {0}" -f $authenticationResult.AccessToken)

}

Invoke-WebRequest 'https://outlook.office365.com/ecp/reportingwebservice/reporting.svc/MessageTrace' -Headers $headers -UseBasicParsing

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App only token sample:

$login = "https://login.microsoftonline.com/"

$tenantId = your_tenant_id

$scopes = New-Object System.Collections.ObjectModel.Collection["string"]

$scopes.Add("https://outlook.office365.com/.default")

$authorty=$login + $tenantId

$clientId = your_client_id

$ClientCertificate = (Get-ChildItem 'Cert:\CurrentUser\My\your_thumbprint_id')

$authenticationResult = Get-MsalToken -ClientId $clientId -TenantId $tenantId -ClientCertificate $ClientCertificate -Authority $authorty -Scopes $scopes

$headers = @{

"Authorization" = ("Bearer {0}" -f $authenticationResult.AccessToken)

}

$result=Invoke-WebRequest 'https://outlook.office365.com/ecp/reportingwebservice/reporting.svc/MessageTrace' -Headers $headers -UseBasicParsing