Hi folks,
I'm currently looking for the opposite of an bloom filter, which may have false negatives but no false positives. The purpose is allowing an spooling (store+forward) mail relay to learn which addresses are not accepted by the actual maildrop (which is connected by an uucp-link, so no direct smtp chat), to get rid of the thousands silly error bounces from brute force attacks on email addresses. An trivial idea would be simply using an hashtable as blacklist, but obviously that would become very big. I need a more compact form, perhaps a subset of regex'es, a colored (b)tree, etc ? Any ideas ? thx -- ---------------------------------------------------------------------- Enrico Weigelt, metux IT service -- http://www.metux.de/ phone: +49 36207 519931 email: weig...@metux.de mobile: +49 151 27565287 icq: 210169427 skype: nekrad666 ---------------------------------------------------------------------- Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme ----------------------------------------------------------------------
