On 2014-05-16 at 06:35 -0700, Shrdlu wrote: > Ignore it. I run two mailing lists, and neither has been affected by > this, no matter how much Sturm und Drang is out and about concerning > the change. Yes, both lists have Yahoo members. Yes, I've warned them > that if Yahoo starts bouncing messages, they'll be summarily removed > from the list (I'm heartless, yes).
It's not Yahoo bouncing messages that's the problem. It's the services respecting Yahoo's published policy statement, to reject mails which don't validate. So if your mailing-list munges the `Subject:` to prepend a list-id, or adds a footer, then DKIM signatures will break, and the _other_ subscribers of your list will suffer; their servers, honouring Yahoo's policy, will reject the mail, causing messages to them to bounce and their subscription to be suspended. The fallout is an externality and does not directly impact the customers of the service provider making this change. FWIW, if anyone wants reading, my posts about DMARC: http://bridge.grumpy-troll.org/2012/02/how-private-is-your-mailing-list-subscriber-list/ http://bridge.grumpy-troll.org/2012/07/mailing-list-recipient-disclosures-with-dmarc-redux/ http://bridge.grumpy-troll.org/2014/04/dmarc-stance/ Regards, -Phil -- My employer, Apcera Inc, is hiring sysadmin; primarily San Francisco: http://www.apcera.com/jobs/#operations-engineer (but all the mistakes in this email are made in my personal capacity) _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
