Quoting Stan Ryckman (stanr(_at_)sunspot(_dot_)tiac(_dot_)net):
Are you sure? I don't know about rocketmail, but all the spam "from"
hotmail and juno I've seen recently has forged From: headers. Usually
it seems to have been injected via uu.net.
Just a couple of weeks ago I had mail.hotmail.com trying to relay a lot
of aol addresses through one of my systems. The ip might have been
spoofed, but I doubt it. Either it originated at hotmail or they're
making it real easy to relay through them.
--
Michael Stone, Sysadmin, ITRI PGP: key 1024/76556F95 from mit keyserver,
mstone(_at_)itri(_dot_)loyola(_dot_)edu finger, or email with
"Subject: get pgp key"