Jim Popovitch via dmarc-discuss:
I'd bet a few beers that the DKIM failures are due to those companies injecting inbound msg headers before processing DMARC checks.
an other option: the MX server don't announce 8BITMIME. You send 8-BIT and your sending MTA recode down to 7-BIT. DKIM invalidation per design. Solution: send 7 BIT only Andreas _______________________________________________ dmarc-discuss mailing list dmarc-discuss@dmarc.org http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)