[ih] Various tests

[Dave Crocker]

On 2/10/2024 10:43 AM, Alexander McKenzie wrote:
> I got a lot of test messages, but when I sent a response from my Yahoo
> account I didn't receive it.  Did anyone else?


Yahoo was the original user of vigorous DMARC, expanded to mail sent 
from a consumer platform.  Any receiving site that honors the request 
for strong enforcement of DMARC will see that the DMARC test fails, with 
a From: field showing DMARC and no SPF or DKIM verification for yahoo.com.


d

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