[ih] Resend:: early networking

[Dave Crocker]

On 4/21/2024 6:12 PM, Jack Haverty via Internet-history wrote:
> Your iwl.com domain seems to be missing some things that the new more 
> aggressive spam filters might now care about.   You might use this to 
> check your domain:
>
> https://dmarcian.com/domain-checker/


Requirement for DMARC is growing but is not universal.  And it does not 
survive going through a mailing list.

That's worse than DKIM's not surviving list transit, since DMARC can 
indicate a preference for handling failures, while DKIM just says to act 
like it wasn't there.

More broadly, receiver email filtering engines are complex analysis 
engines.  There are some simple things that can be dire for delivery, 
but beyond those, each receiving site has their own (complex) set of 
criteria.

d/

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