Can Discover open (crack) .EDB files from the Exchange servers?
See the below link for supported file types.
https://techdocs.broadcom.com/us/en/symantec-security-software/information-security/data-loss-prevention/15-8/about-data-loss-prevention-policies-v27576413-d327e9/supported-formats-for-file-type-identification-v41600705-d327e133471.html