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Eric_Logsdon's avatar
Eric_Logsdon
Brass Contributor
Jun 02, 2025

403 error sending email in Exchange online using Graph API

I am implementing an Azure Function App to notify logged in users before their Azure virtual machine is shut down. (Github repository is here https://github.com/fortytwoservices/AVD-Shutdown) I have ...
exchange online
Eric_Logsdon's avatar
Eric_Logsdon
Brass Contributor
Jun 03, 2025

Thanks. I used Add-RecipientPermission to add SendAs permissions to the mailbox for the App service principal and am still getting the 403. Is there something else I should be doing?

I also verified the permissions in the EAC.

Thanks.

  • VasilMichev's avatar
    VasilMichev
    MVP
    Jun 05, 2025

    I suppose I wasn't clear with my previous reply. I mean you need to add the Mail.Send permissions on the Graph API side of things. 

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