One of my servers has only about 20 email addresses in 5 different domains. I would normally receive about 150-300 emails a day including all spam messages. I paid for the service from Chirpy (which has been running great). Recently we added another client with only one domain and two total email addresses within. This one user has caused our 150-300 total emails a day to hit 1200-2000!! She is receiving approximately 2-3 spam messages a minute. I have been doing this stuff for years and this seems so excessive that it seems like something else is wrong. Granted Mailscanner is catching almost all of this spam (if not all) but it is causing resource utilization to sky rocket! To be honest there are probably about 10 domains which you see coming up as the sending domain even if it's not truly being sent by such domain...just found that to be an odd point. Does anyone have any last opinions before I talk this person into changing her address (which has already been said to be an issue)? Thanks!