SMTP setup error

Hi,

I have added smtp details for sending options when i am sending i am getting error as “The email could not be sent due to a technical issue with SMTP: The email could not be sent: Expected response code 250 but got code “554”, with message “554 5.2.252 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message Cannot submit message.” I didnt get what is the issue here, the same smtp working for us in server but not for smtp.

Thanks in Advance.