Well, now I've figured it out. Hours of online research (or, rather a few minutes wading through the "junkmail" catch in my mail client, but who's counting) have turned up the answer!
From: ...@excite.com
----------------------------------------
-Diploma-
Obtain Your University Diploma Hassle-Free!
-Diploma-
The HIGHLIGHTS:
*NO required tests.
*NO classes.
*NO books.
*NO interviews.
Don't Delay Any Longer.
It doesn't Get Any Easier!
CALL US NOW!
w - xxx - yyy - zzzz
Call and Pick a Diploma.
* Bachelors diplomas
* Masters diplomas
* MBA diplomas
* Doctorate (PhD) diplomas
No one is turned down,
Confidentiality assured.
Pick up your phone now,
and your Diploma will be at your Doorstep
within 48 hours!!
w - xxx - yyy - zzzz
Call 24 hours a day, 7 days a week,
including Sundays and holidays.
Well, shit, I think I might just get me one o'dem dere deeplomahs.
As a side-note, does anyone get any legitimate email from an "excite.com" address anymore? I've had the entire domain blacklisted in my mail clients for some time now and I haven't found it turning up a false-positive yet.