On Thu, May 26, 2016 at 1:25 PM, Joel Beckham <j...@bombbomb.com> wrote:
> Are there any negative consequences to consider before excluding > message-id from our signature? > > ...found that Securence / usinternet.com (A forwarder) gets a measurable > percentage of our mail and modifies the message-id in the process. This > breaks our DKIM signature and causes DMARC to fail at the destination. > Working directly with them, I've learned that they're unable to preserve > the signed message-id. This seems like an odd thing to change. Are you sure that there is nothing else that they are doing to your messages which will break the signature? Having worked on the DMARC interoperability catalog (for the IETF DMARC WG), I'd be interested in talking a bit more with Securence if you can provide contact info off-list so that I can find out if we have captured their issue(s) in the catalog. --Kurt Andersen
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