On 04/30/2014 07:20 AM, Larry Kuenning wrote: > > I think the reason Yahoo groups don't have to rewrite the From line is > that even if the original sender uses an @yahoo address, passing the > message through a Yahoo groups server won't break the DMARC tests > because it's still a yahoo server and therefore "aligns" with the > original From address. Or so I understand it: Mark or somebody correct > me if I'm wrong?
More or less correct. Yahoo groups DKIM signs with d=yahoogroups.com, so that doesn't align with the sender's From: @yahoo.com, but as I noted in another reply, they set the envelope sender to ...@returns.groups.yahoo.com and that passes SPF and does align. > But now I wonder what happens if a user with an @aol address posts to a > Yahoo group. Will it run afoul of AOL's p=reject policy? If I still > had an AOL address I'd be tempted to try this just to see what happens. I will test this when I get time. -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org