>It appears to be on by default as part of Exchange's Intelligent [sic] >Message Filter.
As I understand it, you're referring to Exchange 2003, which was shipped nine years ago, and which, if you believe the Wikipedia article, hasn't been updated since 2005 and hasn't been supported since 2009. What, exactly, do you expect to happen here? http://en.wikipedia.org/wiki/Microsoft_Exchange_Server R's, John
