So trying to use Outlooks SMTP 365 to send out paswordless login emails etc… I configured it in the “Email Provider” area and the “SEND TEST EMAIL” works perfectly.
However when trying to login in my application I built using auth0’s paswordless email I never receive the code in my email. I checked the Auth0 logs and the following error occurs:
Message failed: 554 5.2.0 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message Cannot submit message.
Afaik this means the send email is not equal to the email account used to send the emails out. This email address works for our other services sending out via SMTP so this must be an auth0 issue.
I am sure to use the account user
firstname.lastname@example.org properly in the send field
MY THING <email@example.com>.