If you are running Exchange 2010 SP1 and BlackBerry you should read this. http://blogs.technet.com/b/exchange/archive/2011/03/14/exchange-2010-sp1-rollup-3-and-blackberrys-sending-duplicate-messages.aspx Matt Stehouwer Technology Manager College of Natural Science Deans Office Michigan State University 154 Natural Science Blg. East Lansing, MI 48824 517 355-9003 | Email: [log in to unmask]<mailto:[log in to unmask]>