http://msmvps.com/blogs/bgb/archive/2007/08/09/exchange-2003-imf-filter-is-not-working-blackberry-users-revolt.aspxI have an account that uses Blackberries. We Have Blackberry Enterprise Server installed on the server. Blackberry users are complaining about spam. The Exchange IMF was not working. We had some issues with that Exchange server a few months ago and itenCommunityServer 2008.5 SP2 (Build: 40407.4157)