
On 04/09/2016 11:56 AM, Cedric Knight wrote:
On 23/05/15 22:45, Allan Hansen wrote:
I have waited almost a year for AOL and Yahoo to admit that they messed up and to remove their DMARC policy.
Me too. Sadly, Yahoo has recently (28 March) compounded their mess, probably necessitating an update to workarounds on some Mailman installations.
This should have no effect on Mailman 2.1.18+ installations since the deprecated 'from_is_list' mitigations apply to all list mail and the recommended 'dmarc_moderation_action' mitigations already check the From: domain's DMARC policy.
There is one bug at <https://bugs.launchpad.net/mailman/+bug/1549420> that is fixed in 2.1.21. Prior to that, if a message was From: a subdomain of an 'organizational domain' and the subdomain didn't publish a DMARC policy, the organizational domain wasn't checked for dmarc_moderation_action. Beginning in 2.1.21 it is checked.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan