I manage another network's Exchange server as well, and they have long had a problem with UCE emails in their queue. They never have very many - less than 100 - in their queue at a time, though I could never figure out why. It basically just seems like a downscaled version of this same problem.


My conclusion for the time being is that Exchange 5.5 was just not made to be a secure mail server. Relay restrictions were an after thought. I'm already upgrading one of these guys to Exchange 2003, and am pushing for the same with the other one.

Though I'm still dying to know how these suckers are getting into these networks!!!