Security threats Toolkit
Story: Anti-spam solutions get battering from business
Challenge-response anti-spam technology
Challenge-response anti-spam technology
Challenge-response anti-spam technology must by now be one of the biggest sources of illegitimate email. It very successfully fills the " In Boxes " of those poor souls who have had their email addresses forged by spammers leaving them to deal with the SPAM problem
instead of the original recipient. A very selfish system altogether.
Why do system administrators not set up their anti-spam software to just blackhole suspected spam ? They might loose a few legitimate emails but at least they are not annoying other people and slowing down the email system with unnecessary traffic.
I suspect that a lot of system administrators do not know how to blackhole spam and are taking the easy way out by using commercial solutions thus wasting the financial resources of the companies using them.
SpamCop has an interesting article on the subject which all system administrators should read.
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