[dmarc-discuss] APPRECIATE CONFIRMATION: A bit confused on the utility of a DNS record for DMARC external validation

DMARC dmarc at leadershipbynumbers.com
Tue Feb 20 12:39:09 PST 2018


Thanks, Tim, appreciate the sanity check.

Jack at leadershipbynumbers.com
571.295.6783

On Tue, Feb 20, 2018 at 3:22 PM, Tim Draegen <tim at eudaemon.net> wrote:

> On Feb 20, 2018, at 11:24 AM, DMARC via dmarc-discuss <
> dmarc-discuss at dmarc.org> wrote:
> QUESTION ONE: How is it possible for me to continue to receive aggregate
> reports from domains that have no DMARC external validation for the
> receiving domain ?
>
>
> Some DMARC report generators do not check for the existence of the
> validation record. Call it a bug or a partial implementation.
>
> QUESTION TWO: Is it possible that some receiving MTA's will ignore the
> lack of  DMARC external validation and just send aggregate reports to any
> rua address ?
>
>
> Yup! Entirely possible. According to question #1, you've probably seen
> this in the wild.
>
> Hope this helps,
> =- Tim
>
>
>
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