Thanks Enrico, that did the trick!

Thanks!

Looking at Ens.Job, there's also a ShouldAbort() and ShouldSuspend(). I guess I'll need to handle those, too, right?

Thanks!

I found OnProductionStop(), but I'm after something different, along the lines of calling Ens.Director.GetProductionStatus() from within OnMessage() but with a fifth possible state: ProductionStateStopping

What I'm trying to do is custom retry logic that retries on certain errors, which could mean a pretty long total hang time, so it would seem well-behaved to check every second (or so) whether it's time to shut down.

Thinking about it, it would be a lot better to be able to tell whether the host itself should stop. That is, regardless of whether it's because of a production shutdown or a stop/restart of the individual host.