I have long had a catchall box for my domain without too much issue - spamassassin has handled the load. Apparently - starting at some point today, I am getting several hundred rejects an hour with apparently random_name@xxxxxxxxxxx as the sender and thus the bounce backs/rejects are coming to me. I can filter them with sieve but I am wondering if there's a way to know how/where these things are originating from and if there's likely any reprecussions from this mess. Craig