Failed to send email message : Email Sender

I am getting below error while sending email via email sender.
How to rectify it?

Failed to send email message

Please check for valid properties.

Failed to send email message: 554 5.2.252 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message Cannot submit message.

Hi @Supratim ,
Any idea here!

Hi @Sahil, Did the Email Sender From field have a different email than the one entered on the account’s Email ID field used for authentication? I’d try to remove the From email or you’d need to update the email account to allow sending on behalf of another user.