On 3/16/19 11:50 AM, Alessandro Vesely wrote:
The issue with ARC is that it means nothing to small servers which don't track domain reputation. They can easily add ARC stuff on forwarding, but won't be able to evaluate incoming chains which may be spoofed. Hence, small servers will have to lean on From: rewriting to honor DMARC.
I think the same size problem is going to render ARC from small players equally useless.
At least it's my understanding that receiving systems have to have enough information (reputation) about a sending system to decide if they want to trust the ARC information or not.
I see now way that my small server will ever have enough information / reputation for it's ARC information to ever be trusted.
-- Grant. . . . unix || die
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