'lngd' etc

[Jonathan Nichols]

You know, these days, the *only* spam that slips through is "product 
test panel" and similar crap. The URL is always similar to this one:

http://lngd-pp.com/link/912687492980000550548/
Usually 4 letters, dash, 1 or 2 letters, and what looks like a 'hashbuster'

Anyone found a way to effectively dunk this stuff?
Yes, I'm feeding them all to Bayes. :-)