I have 1 user who cannot send to 1 domain we get this message on the return:
'firstname.lastname@example.org' on 10/3/2011 9:10 AM
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<agw.af.local #5.7.1 smtp;550 5.7.1 Sender ID (PRA) Domain Does Not Exist>
It will fail from any pc that we use and everyone else can send to this domain.
I am lost