On Wed, Feb 1, 2017 at 6:50 AM, A. Schulze via dmarc-discuss
<[email protected]> wrote:
>
> 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
>
I'm running postfix and AFAIK it's only sending 7bit.
postfix postscreen
postfix smtpD
postfix local -> mailman
mailman 8bit -> postfix:587 pickup
postfix cleanup (converts 8bit into 7bit)
postfix qmgr
postfix non-smtpD-milters -> opendkim
postfix qmgr
postfix smtp
-Jim P.
_______________________________________________
dmarc-discuss mailing list
[email protected]
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)
