[ih] Email from Yahoo

[Dave Crocker]

On 2/10/2024 11:16 AM, Jack Haverty wrote:
> As far as I have found, the only way to avoid such rejections is for 
> you, the sender, to change your SPF/DKIM/DMARC settings


SPF is the only one of those that 'authorizes' transit hosts.

DKIM just creates a signature that might or might not get broken in 
transit.  (For a mailing list, the might get changes to will get.)

ARC was created to permit mailing list transit.  It is complicated and 
has had limited adoption.

d/

-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net
mast:@dcrocker at mastodon.social