It appears that Trent Adams <tad...@proofpoint.com> said: >-=-=-=-=-=- > > >I agree... given that changes are being made, it makes total sense to rev the >version number.
That means that everyone will have to publish two DMARC records, one with v=1 and one with v=2. How long until it's safe not to publish the v=1? Since we've never done a version bump before, how confident are we that existing DMARC libraries will ignore the v=2 record and look at the v=1 record? Remember that the DNS makes no promises about the order of records so half the time the v=1 will be first, half the time the v=2 will be first. I do not see what problem a version bump would change. New code will ignore the pct tag, old code will ignore the t tag. While it's possible that the t= tag might confuse existing libraries, I think that's less likely to be a problem than picking the right one from two records with different version numbers. R's, John _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
