[Mailman-Users] gmail

[Mark Sapiro]

On 09/12/2018 09:33 PM, John Levine wrote:
> In article <5B99C857.19328.61F1D54B at bernie.fantasyfarm.com> you write:
>> Well, something changed between Thursday and Friday, because posts to the list 
>> were fine and this one generated a bounce for every gmail member.


Has Gmail been bouncing all list posts or just this one.


> Any chance that the message in question had a From: address in a
> domain that publishes a restrictive DMARC policy?  That can cause
> bounces all over the place.


If just this one post, it could be a DMARC issue, although I think Gmail
gives a different reason for DMARC failures. Does your list apply any
DMARC mitigations? I.e. Privacy options... -> Sender filters ->
dmarc_moderation_action other than Accept.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan