On Mon, 2014-04-14 at 14:41 -0400, Jim Popovitch wrote: > >>> SPF does not check the "From:" header line, and that's where the > >>> troubles begin with DMARC. > >> > >> SPF checks sending IPs (of which your IPs won't match Yahoo's, thus > >> breaking DMARC) > >> > >> Either an SPF failure or a DKIM failure will cause a DMARC rejection > >> if p=reject. > > > > Even if that were the case, which it is not, SPF should pass - since > > typically the list is the envelope sender. > > Yes! (maybe start reading threads from the bottom up?) :-) > This is confusing. I have a list using the DN autoharp.org. the envelope sender is a VERP address with the recipient address embedded, but the DN is autoharp.org, which passes SPF based on the A record for it. The From header address is, of course, that of the author as per RFC.
But we lost perhaps 10% of subscribers to the list based on DMARC rejection. So what is being said here? -- Lindsay Haisley | "Everything works if you let it" FMP Computer Services | 512-259-1190 | --- The Roadie http://www.fmp.com | ------------------------------------------------------ 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
