Exchange 2003 we are facing a problem here with sending emails
We are using Exchange 2003. we are facing a problem here with sending emails from a certain email account. We can easily send emails to others but a certain email account shows a error message like below –
You do not have permission to send to this recipient. For assistance, contact your system administrator. <DEFIANT.eyecentersouth.net #5.7.1 smtp;550 5.7.1 Unable to relay for [email protected]>








