File Type Generic IconExchange Diagnostic Message
File Format Proprietary (Microsoft)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ★ ☆  Average

Diagnostic file generated by Microsoft Exchange when an e-mail message cannot be delivered; points to a local .EML file that typically contains a non-delivery report (NDR).

BDP files are stored in the Badmail folder along with .BAD and .BDR files.

Open With

IconMicrosoft Exchange Server

Updated 2007