http://ruleqa.spamassassin.org/20110102-r1054364-n/T_URL_SHORTENER/detail I inserted a giant uri regex into the nightly masscheck in order to get a rough measure the true extent of the URL shortener problem.
It appears that under 1% of spam is abusing shortening redirectors. ~40% of the shortening redirector spam has local-only spamassassin scores below the 5 point threshold. We'll see next Saturday how it scores with all network rules. Warren
