[dmarc-discuss] DMARC configuration when using spam solution in Front of O365

Maarten Oelering maarten at postmastery.net
Sat Apr 2 00:23:17 PDT 2016

If you can share the full email header of a test mail as it is received,
that would help. For example from a Gmail account. Based on that it's easy
to check SPF/DKIM validation, alignment, etc. You can also use a service
like emailaudit.com to check all DMARC prerequisites.


On Friday, 1 April 2016, Duggan, Anita via dmarc-discuss <
dmarc-discuss at dmarc.org> wrote:

> Good Morning,
> We are in the process of setting up DKIM and DMARC for our domains.   Our
> inbound and outbound email flow goes from O365 to a spam provider and then
> to the internet and vice versa.   We have implemented DKIM / DMARC on O365,
> using the 2 cname records, and have DMARC set to take no action at this
> time.  However, I am unclear what action needs to be taken to address that
> the last hop before our mail goes out to the internet is our spam
> provider.  Any assistance would be greatly appreciated
> Thanks,
> *ADuggan*
> aduggan at rbi.com <javascript:_e(%7B%7D,'cvml','aduggan at rbi.com');>
> The information contained in this message may be proprietary, confidential
> or trade secret and may be legally privileged. The message is intended
> solely for the addressee(s). If you are not the intended recipient, you are
> hereby notified that any use, dissemination, disclosure or reproduction is
> strictly prohibited and may be a violation of law. If you are not the
> intended recipient, please contact the sender by return e-mail and destroy
> all copies of the original message.
> Les renseignements contenus dans ce message peuvent être de propriété
> exclusive, de nature privilégiée, confidentiels ou relever du secret
> commercial. Ce message est strictement réservé à l’usage de son ou ses
> destinataires. Si vous n’êtes pas le destinataire prévu, vous êtes, par la
> présente, informé que toute utilisation, distribution, divulgation ou
> reproduction est strictement interdite et peut constituer une infraction à
> la loi. Si vous n’êtes pas le destinataire prévu, veuillez communiquer avec
> l’expéditeur par courriel et détruire tous les exemplaires du message
> original.
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