Wow, and you haven't even seen part 2 yet, which is where things get a lot more interesting. :-)
Christian, that's pretty interesting. So tracking doesn't even reflect that it got to the categorizer? Sounds like we definitely need to be looking at the transport side of things. If you dig through the queues in ESM can you find it anywhere, like Awaiting Directory Lookup? If you look at the application log do you find any interesting transport events or errors at that time (you can see what time it was submitted to Advanced Queueing in the tracking output)? Anyway, that's the kind of stuff I'd be looking at.
Microsoft
