Extra commands are required for PowerShell to use those commands
- Install-Module -Name Az.StackHCI
- Connect-AzAccount (then login to Azure via popup)
Then the rest as per documentation
- Install-Module -Name ExchangeOnlineManagement -allowprerelease
- Import-module ExchangeOnlineManagement
- Connect-ExchangeOnline -Organization
- New-ServicePrincipal -AppId <APPLICATION_ID> -ObjectId <OBJECT_ID>
- Get-ServicePrincipal | fl
- Add-MailboxPermission -Identity "john.smith@contoso.com" -User <SERVICE_PRINCIPAL_ID> -AccessRights FullAccess
One issue was the https://ps.outlook.com/.default scope did not work and caused Authentication failed. error
Now using the outlook scope for both SMTP and IMAP with the final code as per the documentation
var confidentialClientApplication = ConfidentialClientApplicationBuilder.Create(appId)
.WithAuthority($"https://login.microsoftonline.com/{tenantId}/v2.0")
.WithClientSecret(clientSecret)
.Build();
var scopes = new string[] {
"https://outlook.office365.com/.default"
};
var authToken = await confidentialClientApplication.AcquireTokenForClient(scopes).ExecuteAsync();
var oauth2 = new SaslMechanismOAuth2(accountEmailAddress, authToken.AccessToken);
client.Connect("outlook.office365.com");
client.Authenticate(oauth2);The other PowerShell command needed to enable SMTP was
- Set-TransportConfig -SmtpClientAuthenticationDisabled $true
- and
- Get-TransportConfig to check the change
