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Re: Misguided SPAM Filtering techniques
On 10/22/07, Sean Figgins <[email protected]> wrote: > > Dave Pooser wrote: > > > Whenever I get one of those, I go ahead and confirm the message so the spam > > gets through to the end user. I figure if they think I'm gonna filter their > > mail for free, well, they get what they pay for. :^) > > And that is probably just fine, as 99% of the true spam comes from email > addresses (and often doamins) that either do not exist, or often are not > configured to receive email. Cite? I log only valid domains used as the PRA or MFROM in the spam I receive, about 10k/day. Counting valid domains only, each domain is only seen on about three different spams, when averaged out. That's a hell of a lot of domains that actually exist, and I think a more accurate assumption is that a significant nonzero amount of that backscatter does actually reach a recipient mailbox on the other end. Regards, Al Iverson -- Al Iverson on Spam and Deliverability, see http://www.spamresource.com News, stats, info, and commentary on blacklists: http://www.dnsbl.com My personal website: http://www.aliverson.com -- Chicago, IL, USA Remove "lists" from my email address to reach me faster and directly.