Hey guys! Anyone have a clue on this? I'm trying to configure Outlook 2010 via a GPO to allow certain attachment types to just work for the end user - namely office file and pdf files. Currently the user has to save to desktop, work on file, resend. End user wants to just click attachment and have it open up. I've set the Remove Level 1/2 blocked extensions with the extensions desired and Outlook seems to be completely ignoring it. Security mode is set to use the GPO settings. Any clues why Outlook seems to be ignoring the settings? Thanks!