>And for spam domains, IP-jumping is common... >...for well run, legitimate domains, what >you say is indeed correct Overall, I think you actually make the case FOR my idea of artifically long cacheing of rDNS checks. And, I think my earlier messages covered the various scenarios.
>the load on the hypothetical "pre-mapped rDNS" server would be extreme. Probably the best point so far against my idea >Are you certain that you checked using a >different server that was not authoritative; >Otherwise the test was invalid and needs to be redone. Should I put a "dunce cap on" now... turns out that what you describe is exactly that happened. But, since then, I've gotten some mixed results... Rob McEwen PowerView Systems [EMAIL PROTECTED] (478) 475-9032
