Yahoo and their mail filters..

John Levine johnl at
Thu Feb 26 14:59:58 UTC 2009

>Nor should they.  Anyone who actually researches this stuff knows that  
>the vast majority of "unsub" links simply confirm you as a live target  
>who will click on random links sent to them through e-mail.   

That's the conventional wisdom, not confirmed by research.  The FTC
tried it in 2002 and found that opt-out made the spam load drop
slightly, and I don't see any reason to think it would be different


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