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Mon, 25 Sep 2023 11:54:15 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=iki.fi; s=meesny; t=1695632055; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=ZdVMv6Un73rR3PmfTp06XNBuA1xjCUOjy1t8FPd3X5Q=; b=aMqy23oSeCKVWhAkATx7d9ggqUfVYhSx5/AxkBY0bVZkHhxQn78nii1W/j/hwrshX10Bei RFGulioXwRwg/4Xz2WOux8dJeHz3vpKDi28ZFgjd46UoZMp0KBS8LYGJaYVZrpRJCfivhy raYEF3v1sPwvIWhqydwYQQNHTxzecwE= ARC-Seal: i=1; s=meesny; d=iki.fi; t=1695632055; a=rsa-sha256; cv=none; b=B1vCGtwOF9OlDfr0tFnexKjTad8iQQBe30lJeo7Dn9hy3RRRIHZ5ZZ38vVZMtwG9BJlIXU 4jBl/GCy4lnmE8ne/mhyScSMkkuUH9/JWdYmw+iTokQvGEj5TmfY8Hi1APNNzA3J+YXORJ xuu5Cf1VPIiIAYS0GJsbHwJOMyI9MLs= ARC-Authentication-Results: i=1; ORIGINATING; auth=pass smtp.auth=tlikonen smtp.mailfrom=tlikonen@iki.fi ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=iki.fi; s=meesny; t=1695632055; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=ZdVMv6Un73rR3PmfTp06XNBuA1xjCUOjy1t8FPd3X5Q=; b=gIjoHOwyRm9N0btS9hhAns0Osu1uwCHpYPUapVKQ9ajCJCO22QRrcFBb3nqYtnN5H8eXIU lkXI2VtyKbmj7vtt6MnGq5ei2HnalPToWno/6txipWheGswtN+dF/sQOj9OGLk+V+LrV2K Gvb9GoziSJBVbMF8yORcVDmVvHaJjrg= From: Teemu Likonen To: notmuch@notmuchmail.org Subject: Fixed Message-ID trouble User-Agent: Notmuch/0.38 (https://notmuchmail.org) Emacs/29.1.50 (x86_64-pc-linux-gnu) Date: Mon, 25 Sep 2023 11:54:07 +0300 Message-ID: <874jjiskeo.fsf@iki.fi> MIME-Version: 1.0 Message-ID-Hash: HRSUDUGDSG72E26I775YRIGV56P4ETHO X-Message-ID-Hash: HRSUDUGDSG72E26I775YRIGV56P4ETHO X-MailFrom: tlikonen@iki.fi X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-notmuch.notmuchmail.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.3 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: multipart/mixed; boundary="===============4506613897511123115==" X-Migadu-Flow: FLOW_IN X-Migadu-Country: DE X-Migadu-Scanner: mx0.migadu.com X-Migadu-Spam-Score: -0.76 X-Spam-Score: -0.76 X-Migadu-Queue-Id: 94C9754BEF X-TUID: ypLsWtZIrQg5 --===============4506613897511123115== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Some person on debian-user mailing list seems to be sending messages with fixed Message-ID field: the same ID in different messages. In Notmuch it is creating trouble because it connects unrelated threads to one. The person has different messages in different threads but Notmuch thinks they are the same message because the Message-ID is the same. This is potentially a "denial of service" for Notmuch. Well, not quite, but is harmful nonetheless. How would a Notmuch user fix the mess or protect himself against it? =2D-=20 /// Teemu Likonen - .-.. https://www.iki.fi/tlikonen/ // OpenPGP: 6965F03973F0D4CA22B9410F0F2CAE0E07608462 --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iIYEARYIAC4WIQQL23klfGMkeOvdGCt57xklfWtWWwUCZRFKrxAcdGxpa29uZW5A aWtpLmZpAAoJEHnvGSV9a1ZbSHYA/jm3IOPKmC0RcxzJzwTm90LvgIftC7tIxprV TrvDB1QwAQD6FgFFLp3u/QcEFKDlpIu7DfchVscRyehS87awpGojDQ== =s5Lz -----END PGP SIGNATURE----- --=-=-=-- --===============4506613897511123115== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============4506613897511123115==--