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no-senders; approved; loop; banned-address; header-match-ffmpeg-devel.ffmpeg.org-0; header-match-ffmpeg-devel.ffmpeg.org-1; header-match-ffmpeg-devel.ffmpeg.org-2; header-match-ffmpeg-devel.ffmpeg.org-3; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] Re: [RFC] mailing list From mangling and bounces and DMARC List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Michael Niedermayer via ffmpeg-devel Cc: Michael Niedermayer Content-Type: multipart/mixed; boundary="===============9169911945648944861==" Archived-At: List-Archive: List-Post: --===============9169911945648944861== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="smBQ9MUREWH38k4n" Content-Disposition: inline --smBQ9MUREWH38k4n Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi all On Thu, Oct 16, 2025 at 06:25:00PM +0200, Michael Niedermayer via ffmpeg-de= vel wrote: > Hi everyone >=20 > As we all certainly know, this ML since a few months rewrites > all "From:" headers to "X Y via ffmpeg-devel " > We changed this because neither me nor timo nor rather unhelpfull AI > could fix the bounce & dmarc issue >=20 > 33 @outlook and 19 @hotmail subscribers got deleted on october 8th > because their accounts where disabled from earlier bounces and they > did not re-enable their accounts. >=20 > Other mailing lists from other projects seem to survive without > universal rewriting. >=20 > Should we try to switch this list back to only rewrite the > addresses that need it ? >=20 > mailman3 has a list where we can manually add domains which need it >=20 > hotmail.com and outlook.com both have a DMARC policy of none > so they would not automatically fall under DMARC mitigations > and it seems noone added them to the mailman3 list > nor was outlook in the postfix list we had from mailman2 days >=20 > Both me and timo want to try reducing the from rewriting again. > We seem to disagree a bit on if we try with the mailman3 manual > DMARC list empty first or starting with outlook and all entries from > the sender_canonical rewrite list. >=20 > Are there any people reading this, who have some information / experience= es > they can share about mailman3 DMARC settings ? > (so we can benefit of your experience and can skip some trial and error :) >=20 > What do people think ? > any other thing we are missing ? >=20 > PS: we now have a DMARC setup, ARC signing and mailman3 verp_probes are now enabled, thus people should receive a mail from mailman now before having their account disabled/removed after several bounces. And only if that last mail bounces would their account be disabled/removed This is a mitigation to reduce the annoyance of bounces, not a final soluti= on Ive also enabled that bounced messages will be sent to the list owners so I can see what exactly bounces and why. Iam not sure why this was disabled =46rom rewriting / DMARC mitigation is still unchanged. thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Breaking DRM is a little like attempting to break through a door even though the window is wide open and the only thing in the house is a bunch of things you dont want and which you would get tomorrow for free anyway --smBQ9MUREWH38k4n Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCaPdxdwAKCRBhHseHBAsP qwVKAJ98B+BAzjbSmvRRCgY67PP7ZCAiOACfQUQGbJHz7bVlhv6p9rnTYgQRfwk= =vvD3 -----END PGP SIGNATURE----- --smBQ9MUREWH38k4n-- --===============9169911945648944861== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org --===============9169911945648944861==--