On Nov 26, 2014, at 10:50 AM, Reindl Harald <h.rei...@thelounge.net> wrote:
> > Am 26.11.2014 um 19:45 schrieb Franck Martin: >> On Nov 26, 2014, at 10:19 AM, Matthias Leisi <matth...@leisi.net >> <mailto:matth...@leisi.net>> wrote: >>> >>> >> Agreed, it is cheap in resources. However, it will be easier to add to a >> domain blocking list than to add to an IPv6 blocking list. May be first >> line of defense is the wrong naming. IPv6 blocking lists will be to >> remove the extreme badness of the Internet > > "domain blocking list" is already done with SpamAssassins URIBL only URLs found in the email, that’s very limited. > > blocking sender domains blindly is error prone because you penalty a legit > domain because some faced forged senders > You think that spamhaus, SURBL, URIBL, and any other reputable list service would add in their blocking list a legit domain because some faced forged sender? I think they do know the difference, and even in the case they do collateral damage, they provide public resolution forms, as long as the sender knows how to resolve the block... Have you tried to block based on the domain in the envelope from or From: header? What is your experience? My experience says it is very useful.
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