When some users send email then receive the following back;
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<Domain.com #5.7.1 smtp;550 5.7.1 Client host rejected: Please see
What does this indicate?
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<Domain.com #5.7.1 smtp;550 5.7.1 Client host rejected: Please see
What does this indicate?