Yahoo and their mail filters..
chort at smtps.net
Fri Feb 27 04:17:37 UTC 2009
On Feb 26, 2009, at 5:08 PM, J.D. Falk wrote:
>> Blocking an entire site just because one John Doe user clicked a
>> they don't even understand just does not make sense.
> You're right -- but Yahoo! has a sufficiently large userbase that
> they can count multiple complaints before blocking anything. Same
> story with AOL, and Hotmail, and Cloudmark, and many others who've
> used this technique for years.
This does not appear to be the case from external observation. It may
be in some cases that multiple reports are necessary, but it certainly
seems there are hair-triggers in others. For instance, see the
message from Eric Esslinger.
As for not black-holing anything, I haven't personally verified with
Yahoo!, but others have reported that they do. It's pretty common
from what I've seen to simply make very high-scored messages disappear
and only send the mid-range stuff to the spam folder. Hotmail, as
mentioned, does this. One of the very large hosted filtering services
does as well. I'm not saying it's bad (it makes sense if you can
trust your scoring algorithm), but it does happen. Just because you
get _some_ stuff in your spam folder doesn't mean that's all the spam
that was blocked.
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