It appears that Alessandro Vesely <ves...@tana.it> said: >Sure. Note that if the receiver trusts the MLM, simply recognizing it would >be >enough to pass DMARC per the "mailing_list" policy override. ARC additionally >provides the ability to learn the authentication status of the message when it >was received by the MLM. That way, reputation can be reckoned with great >precision.
If you trust the mailing list, you can just have a whitelist and completely ignore DMARC. If only. Someone else from Google told me that they know perfectly well where all the mailing lists are but they cannot do that because many lists leak spam when spammers steal address books and send spam with a fake From: of a subscriber. ARC specifically addresses this situation by letting the recipient do the filtering that the list didn't, e.g., reject unaligned input messages. R's, John _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
