This is how you re-kindle a lost relationship with a former user (DynDNS)
stuff.alonswartz.org
stuff.alonswartz.org
For example, I used to use DynDNS all the time because I was running a small personal site off my home broadband connection. Then, thanks to an improvement in fortunes, I was able to afford a hosting service and a "real" DNS. So I switched. If DynDNS sent me an e-mail like this, it wouldn't really matter, because I've already got everything set up, and I'm not really looking to change.