How to disable Non-Delivery Reports (NDR) in Microsoft Exchange server Author: Luis Fernandes April 11, 2020 00:49 Updated AnswerTo enable and disable the NDR's through Microsoft Exchange server, please review the following Microsoft Knowledge Base articles below:Microsoft Exchange 2000/2003 http://support.microsoft.com/default.aspx?scid=kb;en-us;294757 Microsoft Exchange 2007/2010 http://technet.microsoft.com/en-us/library/aa998621(EXCHG.80).aspx Microsoft Exchange 2013/2016 http://technet.microsoft.com/en-us/library/jj649325(v=exchg.150).aspx Related articles How to prevent a Reverse NDR Attack How to check and read a Sender Policy Framework record for a domain Error: 'An unknown error occurred, error code: 0x80040107' While Adding the GFI Archiver Folder to MS Outlook. How to determine why the Attachment Filtering Content Filter blocked or allowed a message What is Sender Policy Framework (SPF) and how do I create a record?