Moin, > Is it not ARC meant to be the solution for > this problem? Yeah, technically, ARC _should_ help with this. However, in practice, trusting ARC is not really that common.
> Would DMARC then consider the original > DKIM and SPF tests? Kind of; DMARC would trust the signed ARC headers that evaluated the original SPF/DKIM situation upon first receipt. With best regards, Tobias