That's great explation. Thanks Richard.
On Mon, Nov 25, 2019, at 7:33 AM, Richard Damon wrote: > On 11/24/19 6:21 PM, Wesley Peng wrote: > > Why it doesn’t break From: header SPF? Just curious > > > > On Mon, Nov 25, 2019, at 4:12 AM, Chris Wedgwood wrote: > >> > Or in short: DMARC intentionally breaks every mailinglist and every > >> > mail-forwarding. So, if a mail-provider uses a strict DMARC-policy, > >> > it effectively says: "Our mail-addresses may not be used for > >> > mailinglists." > >> > >> this message (i am replying to) from you on this mailing list is not > >> broken > >> > It DOES break DMARC/SPF, as the IP address the message comes from > doesn't match the From of the message, but with DMARC if EITHER SPF or > DKIM pass, the message is to be considered to pass. > > A Domain with strict DMARC, and which doesn't DKIM sign messages, will > fail with any form of remailer, so would fail for this application. > > -- > Richard Damon > >
