When I try and search for emails received over an 8 hour period for a user, I get the message tracking result "the server software doesn't support the type of search requested" If I search for emails within the same period on a different user, I get results. I'm stumped :( It seems to work only for a handful of users. The server is SBS 2008 (Exchange 2007 SP1)

Hi Simon,Can you try running the message tracking from command shell.http://exchangepedia.com/blog/2006/10/exchange-server-2007-message-tracking.htmlsee that makes a difference. Also i will suggest to upgrade the exchange server to RU9 or SP2.Raj