著者: William Thompson 日付: To: Alan J. Flavell CC: Dennis Davis, Exim users list 題目: Re: [Exim] Idea to slow down spammers
> Right, but the dictionary scanners that I'm thinking of seem to have a > rolling list of hundreds of open proxies which they use. As soon as
> our mailer spots the pattern, it drops those IPs one by one into a
> local blacklist, and by that means we've collected nearly two thousand
> such IPs so far this year alone.
