In Exchange System Manager, under Global Settings, Internet Message Formats, double click on Default and under the Advanced tab theres a box to uncheck for Allow Non-Delivery reports.
Last Wiki Answer Submitted: September 15, 2009 5:56 pm by Moto460 pts.
If you live outside the United States, by submitting your email address you consent to having your personal data transferred to and processed in the United States.
Are you just trying to prevent NDRs for external addresses or internal too? NDRs provide valuable information when troubleshooting email issues.