I have an issue with forwarding email to mail enabled contacts that were created for Blackberry users in Exchange Server 2003. Blackberry has a 10MB email limit, so when Exchange tries to deliver email and is unsuccessful, a non-delivery report (NDR) is sent to the user indicating that the BlackBerry account would not accept the message. Most users don't realize that the attachment did, however, reach the Exchange mailbox. But the BlackBerry device did not receive the attachment. Is there a way to shut off NDR's for the specific mail enabled contact? As an alternative, if I restrict the size of email for the mail enabled contact, will that also send a NDR?