On Mon, Jul 12, 2021 at 5:50 PM <kgail...@redhat.com> wrote: > > On Sat, 2021-07-10 at 12:34 +0100, lejeczek wrote: > > Hi Admins(of this mailing list) > > > > Could you please fix in DMARC(s) so those of us who are on > > Yahoo would be able to receive own emails/thread. > > > > many thanks, L. > > I suppose we should do something, since this is likely to be more of an > issue as time goes on. Unfortunately, it's not as simple as flipping a > switch. These are the two reasonable choices: >
The problem is, both are incomplete. > > (1) Change the "From" on list messages so that they appear to be from > the list, rather than the poster. For example, your posts would show up > as "From: lejeczek via ClusterLabs Users <users@clusterlabs.org>" > rather than "From: lejeczek <pelj...@yahoo.co.uk>". This is less > intrusive but makes it more difficult to reply directly to the sender, > add the sender to an address book, etc. > This will pass SPF but fail DKIM > > (2) Stop adding [ClusterLabs] to subject lines, setting ReplyTo: to the > list instead of original author, and adding the list signature. This is > more standards-compliant, since the List-* headers can still be used > for filtering, unsubscribing, and replying to the list, but not all > mail clients make those easy to use. > This will pass DKIM but fail SPF. I do not know how many domains implement only SPF, only DKIM or both. > > Anyone have preferences for one over the other? > > (Less reasonable options include wrapping every post in MIME, and > disallowing users from DMARC domains to post to the list.) Well, enabling ARC in addition to either of the options may somehow mitigate them. It depends on *recipient* domain support though. Also I am not sure whether Mailman 2.x supports it. >From a personal perspective, I already filter by list ids and [ClusterLabs] just wastes screen real estate. But I remember somewhat heated responses when openSUSE changed list software and dropped prefixes - apparently quite some users were using single mailbox and relied on prefixes to prioritize message reading. _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
