On Sat, Apr 20, 2019 at 07:31:06AM -0400, Richard Damon wrote: > Where the issue comes is with DMARC, which restricts the DKIM protocol > to be aligned with the From line of the message, and thus the MLM can't > make the message pass the DMARC settings of the sending domain. It is > DMARC which breaks the traditional operation of a MLM, and the use of > which implies that the sender should not be using such tools.
Now that's a bit dramatic isn't it? A mailing list *can* work with dmarc just fine if it doesn't modify the protected headers. That doesn't seem to be particularely complicated assuming Headers like List-Unsubscribe et al can still be added. Just don't modify the subject and the body and you should be fine.
