Part of the process of bringing this site back online involved having Northwest Link point the DNS for my domain to the new machine I built. As soon as I was able to change my domain so that their DNS servers were in charge, I sent their hostmasters a couple of emails detailing what I wanted.
All but one of the instructions was followed perfectly. You see, the new server is named “duckpond,” hence “duckpond.greyduck.net” being the machine name that email should be directed to. They did put that address into DNS… but put it in the MX record as “duckpond.greyduck.com” which, of course, does not exist.
So email directed to greyduck.net is bouncing like a big rubber ball right now.
That’s not all: Because the Request Tracker system I use to track “trouble tickets” is (was) set to email my greyduck.net account every week with a list of current tasks, and because Request Tracker is (was) configured to reply automatically to new ticket requests, and because email to greyduck.net addresses bounces, my RT system has almost three thousand new tickets, all from Northwest Link’s mailer daemon telling me that my email address is undeliverable. RT sees those notices as new tickets and replies, which generates another bounce, which generates another ticket, which generates another reply, which generates another reply, which generates another ticket, ad infinitum.
I’ll be spending the next few hours here at the office, killing duplicate tickets, 100 at a time. *sigh* Just another lesson in system administration, I suppose.