Error Message: {"error":{"code":"ErrorSendAsDenied","message":"The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account., Cannot submit message."}}

GiraffeMedia
Mon, 06 Apr 2026 21:04:34 +0000
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I just connected Gravity SMTP to my website. I am using the Microsoft Integration which requires configurations and creation of an app within our companies Microsoft Azure account. I was getting confirmations all along the way until I tried to do my first test. The error message is as follows:

{“error”:{“code”:“ErrorSendAsDenied”,“message”:“The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account., Cannot submit message.”}}

I am not sure where I need to start to troubleshoot this issue? Is it in the Gravity SMTP app? Is it in Microsoft Azure?

Any help will be much appreciated.

4 posts - 2 participants