I've looked over the 18.c manual and can't find what I'm looking for (though I realize that I might be missing it). I'm hoping one of you kind experts can point me in the right direction. I keep getting bounce mesages for a subscriber who isn't on my list in any way, shape or form. I suspect that someone is forwarding their subscription to that address, not realizing that the id being forwarded *to* no longer exists. You'd think they'd have noticed they're not getting mail, but I have yet to figure out the mindset of your average mailing list subscriber. Unfortunately the domain in question is one of my largest. What I'd like to do is send a "probe" to every address in the domain, and the ones that bounce will be my candidates. However, all I can find in the manual is how to set autodelete to use PROBE. Because I'm a kind and benevolent list despot, I have autodelete disabled so that I can choose to set people to digest or nomail for temporary mailer problems. Is there a way I can instigate a probe message, either for the entire list or for a domain? Thanks Jae Walker Listowner, SW-RPG [log in to unmask]