Hi Reg, I think Apple's Mail has this feature (meaning, I assume, the ability to simulate a Delivery Status Notification about a permanent non-existent address). However, I recommend that you verify that this is definitely the feature you need, and that it works as required. Otherwise, it won't have the desired effect (maybe even the opposite). Of course, spammers don't necesarily care if your address exists or not, so maybe it doesn't make much of a difference these days?
James.
