Guys just wanted to ask if there is a way to UNBLOCK a specific file (.mdb) in exchange 2003. I am currently using MS outlook 2007 as my email editor and I learned that exchange blocks this type of file / attachment. Somebody told me i can find this file in the registry and remove it from the denied group and move it to the allowed group in the exchange server.. Does this work? Is there another way? I was thinking to do this on a per group / policy basis, if i change the registry it will affect everyone in the domain?