http://bugzilla.spamassassin.org/show_bug.cgi?id=1375
------- Additional Comments From [EMAIL PROTECTED] 2004-03-02 14:58 -------
I see one major problem with skipping invisible links in at least some form of
examination. That is where the spammer will put the web bugs. After all, they
don't need to be (and generally aren't) visible.
I consider the "lookup DOS" argument somewhat moot. Count the number of links
in the message and divide into the text size. If there are more than x*10^n
links on the page, or the links are more than y% of the total body size,
declare the thing to be spam without looking anything up.
Incidentally, this makes an argument for self-scoring tests. A test that
counted URIs in the body and gave a score based on the number of hits (possibly
times a factor or with upper and lower bounds) would make this sort of decision
a lot easier than it currently is.
Loren
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