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Open source software, shogi and my life outside of workplace.
Yoshiki Hayashi
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Categories
Thu, 28 Oct 2004
spam
This might be a very dumb idea or somebody aleady tried it if it is
not, but it just occured to me. I have an e-mail address at ISP. I
haven't been using it but since the address has been valid for several
years I receive lots of junk mail. In fact, almost all mail I receive
there are junk mail. So how about having an e-mail address that can
be easily harvested but not used for real communication to filter spam
mail in main mail box? One simple observation of those unwanted mail
is that those are sent to many addresses at almost the same time. So
it might be possible to filter out unwanted e-mail by just comparing
mail sent in similar time period. If a mail "matches" one in the spam
mail address then it's definitely a garbage.
I know there exists a spam filtering system using kind of a voting system. However, for the system to work participants have to behave correctly. But with spam only address, nobody has to behave. In this system, spammers kind of identify themselves as such.
Hmm, quick check showed that actually there are not many identical unwanted mail going to my two different mailboxes independently. But it might be still worth experimenting. Knowing something is 100% spam helps traditional filtering even when this method doesn't work quite well.