Hello,
I manage a flow Power Automate which sends approximately 70 e-mails every day, but I receive in Outlook non-delivery errors indicating that the sender address is not recognized as valid.
Here is the error : "This message couldn't be delivered because the sending email address was not recognized as a valid sender. The most common reason for this error is that the email address is, or was, suspected of sending spam. Contact the organization's email admin for help and give them this error message."
Has anyone experienced this problem or have any tips to share to resolve this situation?
Thank you for your help !
