Forefront Protection 2010 for Exchange Blocking winmail.dat

Thursday, 19. July 2012

When deploying Forefront Protection 2010 for Exchange and enabling file filter the majority if not all emails being sent and received had the body of the message replaced with:

FILE QUARANTINED

Microsoft Forefront Protection for Exchange Server removed a file since it was found to match a filter.
File name: “winmail.dat”
Filter name: “FILE FILTER= Blocked File Extensions: *” Read more �