Re: Will mailing lists survive DMARC?

[Alessandro Vesely <[e-mail]>]

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