Bob, did you get any response? It appears to me that your Max(100) may be
too high. As I understand key word Auto-Delete, for your setting:
Auto-Delete= Yes,Semi-Auto,Delay(4),Max(100)
a subscriber would need to bounce 100 messages in 4 days or bounce
consecutively for 4 days to be deleted.

You may also want to look into the passive probing feature if you have
1.8d. It works with the Auto-Delete key word. It looks like a good
complement to the other auto-delete features.

FRANK