[dane] ***SPAM*** 5.6 (5) Problem with ns.forpsi.{cz, it, net} nameservers and DANE TLSA
Viktor Dukhovni <ietf-dane@dukhovni.org> Sun, 23 November 2014 19:40 UTC
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Date: Sun, 23 Nov 2014 19:40:26 +0000
From: Viktor Dukhovni <ietf-dane@dukhovni.org>
To: FORPSI - Tech <admin@forpsi.com>
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References: <e78b811d7c054a1bb1ced93b38109be7@forpsi.com> <20140908123910.GU26920@mournblade.imrryr.org>
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Cc: "Deccio, Casey" <cdeccio@verisign.com>, dane@ietf.org
Subject: [dane] ***SPAM*** 5.6 (5) Problem with ns.forpsi.{cz, it, net} nameservers and DANE TLSA
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The problem is not surprisingly more widespread than the one domain reported in ticket [0C6-1B9BB2EF-0123]. This will cause email delivery problems to your customers' domains if not resolved by fixing the nameserver software. My new (and surely incomplete) list of affected domains is below. The newly updated (thanks Casey!) dnsviz.net site now gives a very clear picture of the problem (just "mouse over" the NSEC3 record box). A wildcard at the domain level is incorrectly applied below a sibling node. http://dnsviz.net/d/_25._tcp.mail.jursoft.cz/dnssec/?rr=52&ds=all&a=all&doe=on&ta=. Queries for the TLSA records of all the MX hosts below similarly fail validation. What and when might be done to fully address this issue? Domain _25._tcp.mx-host. IN TLSA ? --------------------------------- --------------------------- 3nicom.cz. _25._tcp.mail.3nicom.cz. IN TLSA ? abcgames.cz. _25._tcp.mail.abcgames.cz. IN TLSA ? adol.cz. _25._tcp.mail.adol.cz. IN TLSA ? amd-autodily.cz. _25._tcp.mail.amd-autodily.cz. IN TLSA ? arles.cz. _25._tcp.posta.arles.cz. IN TLSA ? autobox.cz. _25._tcp.mail.autobox.cz. IN TLSA ? bigbig.cz. _25._tcp.mail.bigbig.cz. IN TLSA ? bonerix.cz. _25._tcp.smtp2.bonerix.cz. IN TLSA ? cag.cz. _25._tcp.mail.cag.cz. IN TLSA ? cenyzbozi.cz. _25._tcp.mail.cenyzbozi.cz. IN TLSA ? challengept.cz. _25._tcp.mail.challengept.cz. IN TLSA ? chilli-forum.cz. _25._tcp.mail.chilli-forum.cz. IN TLSA ? convex.cz. _25._tcp.mail.convex.cz. IN TLSA ? cz-ebay.cz. _25._tcp.mail.cz-ebay.cz. IN TLSA ? dum-svitidel.cz. _25._tcp.mailserver.dum-svitidel.cz. IN TLSA ? dzd.cz. _25._tcp.fw.dzd.cz. IN TLSA ? efutsal.cz. _25._tcp.mail.efutsal.cz. IN TLSA ? elitedate.cz. _25._tcp.mailserver.elitedate.cz. IN TLSA ? equiservis.cz. _25._tcp.server.equiservis.cz. IN TLSA ? gc-system.cz. _25._tcp.posta.gc-system.cz. IN TLSA ? gigacomputer.cz. _25._tcp.mail.gigacomputer.cz. IN TLSA ? happylabel.cz. _25._tcp.mail.happylabel.cz. IN TLSA ? holmesplace.cz. _25._tcp.mail.holmesplace.cz. IN TLSA ? hzprofin.cz. _25._tcp.mail.hzprofin.cz. IN TLSA ? jursoft.cz. _25._tcp.mail.jursoft.cz. IN TLSA ? kettler.cz. _25._tcp.firma.kettler.cz. IN TLSA ? koberce-trend.cz. _25._tcp.mail.koberce-trend.cz. IN TLSA ? koboz.cz. _25._tcp.mail01.koboz.cz. IN TLSA ? nejlevnejsi-povleceni-zaclony.cz. _25._tcp.mx.nejlevnejsi-povleceni-zaclony.cz. IN TLSA ? neovize.cz. _25._tcp.mail.neovize.cz. IN TLSA ? penta.cz. _25._tcp.mail.penta.cz. IN TLSA ? poucek.cz. _25._tcp.mail.poucek.cz. IN TLSA ? prag-aktuell.cz. _25._tcp.isp.prag-aktuell.cz. IN TLSA ? quadrio.cz. _25._tcp.mail.quadrio.cz. IN TLSA ? quanti.cz. _25._tcp.mail.quanti.cz. IN TLSA ? rr-naradi.cz. _25._tcp.remote.rr-naradi.cz. IN TLSA ? rybolov.cz. _25._tcp.mail.rybolov.cz. IN TLSA ? sapho.cz. _25._tcp.server.sapho.cz. IN TLSA ? stanicek.cz. _25._tcp.mail.do.stanicek.cz. IN TLSA ? starelazne.cz. _25._tcp.mail.starelazne.cz. IN TLSA ? svetbot.cz. _25._tcp.swenia.svetbot.cz. IN TLSA ? svetoutdooru.cz. _25._tcp.mail.svetoutdooru.cz. IN TLSA ? t-led.cz. _25._tcp.mail.t-led.cz. IN TLSA ? technoline.cz. _25._tcp.mail.technoline.cz. IN TLSA ? textrix.cz. _25._tcp.mail.textrix.cz. IN TLSA ? velkebilovice.cz. _25._tcp.mail.velkebilovice.cz. IN TLSA ? vlasy-in.cz. _25._tcp.mail.vlasy-in.cz. IN TLSA ? xshare.cz. _25._tcp.mail.xshare.cz. IN TLSA ? -- Viktor.
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