Hi!
On mailop@???, Franck Martin <fmartin@???> posted
a pointer to
https://dmarc.org/2015/10/global-mailbox-providers-deploying-dmarc-to-protect-users/
which, among other things, points to a developing IETF Draft
about ARC (Authenticated Received Chain), something
like a onion scheme for DMARC.
There is a mailing list to discuss ARC implementation:
http://lists.dmarc.org/mailman/listinfo/
Is anyone working on that topic with regard to exim ?
--
pi@??? +49 171 3101372 5 years to go !