Yahoo DMARC breakage

Mon Apr 21 03:57:20 UTC 2014

On Apr 20, 2014, at 4:07 PM, Scott Howard <scott at doc.net.au> wrote:

> On Sun, Apr 20, 2014 at 3:01 PM, Franck Martin <fmartin at linkedin.com> wrote:
> why does this list break DKIM when forwarding?
> 
> From the Gmail headers your email :
> 
>  Authentication-Results: mx.google.com;
>        spf=neutral (google.com: nanog-bounces+scott=example.com at nanog.org does not designate permitted sender hosts) smtp.mail=nanog-bounces+scott=example.com at nanog.org;
>        dkim=pass [email protected];
>        dmarc=pass (p=REJECT dis=NONE) header.from=linkedin.com
> 
>   Scott
> 

Sure as long as I make sure my post is plain text only which you know is not anymore a standard on many email clients (and not configureable on many mobile mail clients).

So if this list stops to strip the HTML mime part it will pass DMARC in all cases.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 495 bytes
Desc: Message signed with OpenPGP using GPGMail
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20140421/8e292eaa/attachment.sig>