I am finding it rather hard to follow the DMARC discussion. Some folk have managed to convince me that they are upset but working out why would require rather a lot of spec crunching. My best theory so far is that DMARC is some sort of email policy statement and that either (1) some companies are now publishing a policy that states 'reject all mail that purports to come from this address that does not have authentication Y' or (2) some companies are now rejecting mail not in compliance with said policy or (3) both. There is a simple truth about DNS names: Whoever owns them makes the rules for their use [1]. If you don't like the rules for google.com then choose another domain to post from. If people want email to work with mailing lists, then don't complain about reasonable choices people want to make. Work out a way to fix mailing lists so that they work properly. There is no reason we can't change the way From works. Or add new from headers. Are we engineers or curators of the past? [1] Thus be rather suspicious of folk who claim that we merely rent the use on terms of their choosing. -- Website: http://hallambaker.com/