From nobody Sun Apr 14 23:49:32 2024 X-Original-To: freebsd-stable@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4VHn8q4w16z5HK1H for ; Sun, 14 Apr 2024 23:49:47 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4VHn8q02fQz443Z for ; Sun, 14 Apr 2024 23:49:46 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 43ENnWQu078836; Mon, 15 Apr 2024 08:49:32 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) Date: Mon, 15 Apr 2024 08:49:32 +0900 From: Tomoaki AOKI To: Andrew Reilly Cc: freebsd-stable@freebsd.org Subject: Re: What's happening to Sender: headers? Message-Id: <20240415084932.b912e002e79bdc38b68189d7@dec.sakura.ne.jp> In-Reply-To: References: Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.0) List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-stable@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4VHn8q02fQz443Z On Mon, 15 Apr 2024 08:33:05 +1000 Andrew Reilly wrote: > Hi all, > > I can’t think of anywhere else to ask, but this knowledgeable group is as likely as any to know what’s going on, I think. > > For years and years I’ve been able to filter all of my FreeBSD mailing list messages into a separate FreeBSD inbox with a pair of simple dovecot-sieve rules: > > if address :matches "Sender" "*owner@freebsd.org" { fileinto "in.freebsd"; } > elsif address :matches "Sender" "owner*@freebsd.org" { fileinto "in.freebsd"; } > > (… and similarly for most of my other mailing lists). The Sender header is (used to be) a reliable reflection of the envelope FROM address, which reliably tied things to the email server sending the list messages. > > On about the 11th or 12th of April, a significant chunk of FreeBSD mailing list messages, including especially the git commit messages, started showing up in my normal INBOX, evading the filter rules. > > Over the weekend I got around to investigating, and discovered that the errant messages don’t _have_ a Sender: header. There’s a Return-Path: header that captures the envelope-from, but I haven’t figured out how to make sieve check that yet: it doesn’t seem to like it. Sieve documentation is spectacularly inconclusive, but I suspect that the envelope extension might do what I want, but that’s not really my question. > > Does anyone know why the Sender: header, which used to be so reliable that I had thought it an intrinsic part of the SMTP/MTA ecosystem, has gone away, or is at least not ubiquitous? > > I’m running dovecot and pigeonhole and postfix from ports, on stable/14 and feeding messages in using fetchmail rather than direct SMTP: I’ve found that exposing an SMTP endpoint requires more anti-spam fu than I've been prepared to muster so far. Using fetchmail is clunky but it keeps me behind my ISP’s spam filter. > > Cheers, > > Andrew You'd better contacting postmaster@freebsd.org. Or, this is not the case though, file a bug on bugzilla.freebsd.org with Product = "Services" and Component = "Mailing Lists". This is helpful is your emails are somehow rejected by freebsd.org mail server. -- Tomoaki AOKI