On Aug 23, 2005, at 10:55 AM, Keith Moore wrote:
Some blacklists are more responsible than others, but I haven't yet
seen one that, if trusted to block mail, doesn't block a
significant amount of legitimate mail.
One advantages of DKIM in this regard, is that when reputation can
fully move to the use of the name (HELO authentication could improve
upon name reliance), then the often large amount of collateral
blocking that occurs when using just the often heavily shared IP
address is eliminated.
-Doug
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