Funny you should mention that. I recently wrote a proof of concept plugin that does exactly what you're talking about. The point was to check URLs against google's safebrowsing list, which was just announced.
Unfortunately, the results were rather poor. The only hits that I got were on messages that already scored 10+ points. And a few false positives -- last I checked, the main page for myspace was listed in the malware list (I believe). If anyone's interested, the (very rough) code for syncing google's lists, and for checking a database containing the hashes is available. Austin. On 7/3/07, Matt <[EMAIL PROTECTED]> wrote:
Why can't Spamassassin do like a MD5 hash of any URL's in a message and check them against a database? I just think it would help catch things like: geocities.com/spamer123/ or spamer123.tripod.com and etc. It would also work for Tinyurl links and the like. Matt