Path: csiph.com!aioe.org!.POSTED.0waBM8EsiO6GSUmEKysa8Q.user.gioia.aioe.org!not-for-mail From: Dmitry Alexandrov <321942@gmail.com> Newsgroups: comp.misc Subject: Re: email threading Date: Thu, 11 Apr 2019 04:12:06 +0300 Organization: Aioe.org NNTP Server Lines: 46 Message-ID: <87k1g1e461.fsf@gmail.com> References: <20190328113109.20e2a9ce.rsw@therandymon.com> <874l7mgq5k.fsf@bogus.nodomain.nowhere> <87o95nuli0.fsf_-_@violet.siamics.net> NNTP-Posting-Host: 0waBM8EsiO6GSUmEKysa8Q.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Mail-Copies-To: always Accept-Language: ru,en X-Notice: Filtered by postfilter v. 0.9.2 Accept: text/plain,text/markdown,text/x-org,text/html,text/*,*/* Cancel-Lock: sha1:e6ukwKqWIzsoP7H5cH5m+gL5v0E= Xref: csiph.com comp.misc:17798 --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Ivan Shmakov wrote: > Email uses In-Reply-To: header in place of Usenet's References:, albeit = that only holds the Message-ID: of the "parent" article. Good mail-useragents actually maintain =E2=80=98References=E2=80=99 header = along with =E2=80=98In-Reply-To=E2=80=99. > References: typically provides a short(ish) history of ancestors for a g= iven message, but I don't think I've ever seen a newsreader that'd make use= of anything but the last entry in the list. Haven=E2=80=99t ever seen such a newsreader _besides_ Gnus, you mean? > No parsing of human-readable Subject: prefixes is (thankfully) necessary= for email threading. Not normally necessary, yet sometimes is also useful (and Gnus is capable o= f doing that too). > (So long as the MUAs in question aren't broken in that regard, that is.) MUA is not the only thing that might be broken. Presumably, Mailman 2 is t= he most prominent example: it mangles message ids when gatewaying mail to N= NTP: look at the hell that is going on at mozilla.* groups: half on the peo= ple is subscribed by mail, another half =E2=80=94 by NNTP, so forget about = proper threading. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE1yoTx9fONarixgNIydoJ3hnBsjAFAlyulGYACgkQydoJ3hnB sjATbggAk0qpfzqstHKFnKAfA6BCfTOz6aG3XjI5V7y13eFJObsRQ9gxBiy3LMCZ 6O1yFVn/EIgQwKuwrDqXcyxfAwDBWANfzPZuMkVd3CWr3oL6wyfmVKOEJYL18OLv aLPTzIyN0W4pYgGgJzpVkQ0Tdg/1ZRXH8N/ap0toEsKy9+BhN2F7XS178xrAEB+s 26xPb8qbJ0TORRyWno3wJl0inC/XtAoi9AdLOtAefUzZ4BhBCYICduU7qiRz5mrr 0WJqWLtrtCHG6wVjtzUtgDN8xMn2mKG8dedudVahbouxvRFzxlbo+Tq490k5DRQc QfpRFz3fdyKTWJuKN83dNsFEpk7zyg== =irZy -----END PGP SIGNATURE----- --=-=-=--