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Re: Will mailing lists survive DMARC?

2014-04-29 08:52:41
On Tue 29/Apr/2014 14:55:52 +0200 Patrik Fältström wrote:

The problem exists if A is publishing such a policy, B is 
acknowledging the policy, B is generating a bounce, and the 
bounce is hitting the mailing list provider.

I do not understand why a bounce should be generated (and not the
incoming mail to B would be tagged as spam and/or null-routed).

There is also a p=quarantine policy.  Yahoo! and AOL, as well as
PayPal, LinkedIn, Facebook, etcetera use p=reject, though.

That said, the result of the above is that B is unsubscribed from
the mailing list due to large number of bounces, but that is
because B is recognizing the policy A is publishing.

B's domain need to do so in order to reject scams claiming to be
from banks or social networks.

Do I get this right?

More or less.  Many people set up forwarding to an address at a
domain different from theirs, typically large providers, so there
are multiple places where the bounce may occur.

Ale