Back in '96, there was a service (can't remember what company though) that gave you "email redirectors" with a lot of "cool" domains, like 2die4.com, rocketship.com, et al. They promised back then that those of us who signed up would get the service for free. And that I did, I even could send e-mail thru their SMTP server, provided I used my e-mail addy set up with them.
SMTP went for-pay sometime around '98. Then sometime around 2000-ish, my "free" service was dropped out entirely, much in this current Postmaster fashion. Thing is, I used that address as my "main" e-mail addy because of its redirecting properties. *sigh*
Oh, if you want to block ads, do what I do: set up a squid proxy, and set it to filter out atdmt, googlesyndication, campaign.indieclick.com and such. All banners will silently dissappear, regardless of what browser you use ;)