On Fri, 1 Jul 2016, Chris Adams wrote:
Once upon a time, Ed Greshko <ed.greshko@xxxxxxxxxxx> said: No, it isn't specifically a Gmail issue, it is an issue from the combination of DMARC strict policies, sites that enforce DMARC policies, and mailing lists. Yahoo publishes DMARC policies that say messages from a Yahoo domain in the From: header should only come from the Yahoo servers. Gmail (and other sites) recognize and follow those policies. When a Yahoo user sends email to a mailing list, and the list server resends the message, it doesn't come from a Yahoo server, so sites that follow DMARC policies reject the message. The correct solution is for the mailing list software to be changed to rewrite From: addresses. Newer versions of Mailman support this. The address rewriting is annoying, but is the only true solution to being in between sites that publish and honor DMARC policies.
Yeah, this was a big issue on another mailinglist I belong to (NAME-L at Emory U). We had a bunch of people who simply disappeared from the list for a couple of months. Then they all reappeared with obviously re-written addresses. That meant that none of them could get backchannel responses by just choosing "reply" because Emory didn't decode the addresses for response in a reply. Since that list is associated with an organization that keeps a list of public email addresses of members, the workaround was to have to look up the address if you wanted to respond individually. But that doesn't happen much. All in all, it turned out to be a blessing in disguise because a lot of people were in the habit hitting "reply all" and posters would get two responses -- one to the mailinglist and one personally. And it turned out that most of the people who were either offenders *or* victims of the double mails were mostly Yahoo/Gmail folk. Win. win. billo -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://lists.fedoraproject.org/admin/lists/users@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
