All- I have a server that keeps sending these bouncebacks when someone tries to send to a contact with an external smtp address:
The following recipient(s) cannot be reached: Username on 1/22/2010 11:57 AM You do not have permission to send to this recipient. For assistance, contact your system administrator. <exchangeserv.domain.com #5.7.1 smtp;550 5.7.1 Authentication Required> Thiis is a one Exchange 2003 server enviroment. So not alot of hops in the routing structure. The smtp connector is using DNS to send emails externally. Any ideas? TIA, John Bowles