yes that's valid, the lookup is always explicit so as long as dns answers back with the TXT record you'll be good.
such as dig +short TXT testdomain .otherdomain.com._report._ [ http://dmarc.sub.otherdomain.com/ | dmarc.sub.otherdomain.com ] . answer: v=DMARC1 From: "Davina Thomas (US) via dmarc-discuss" <[email protected]> To: [email protected] Sent: Wednesday, March 22, 2017 10:55:57 AM Subject: [dmarc-discuss] "Subdomain" Wildcard in DMARC Report Authorization Records Instead of just an asterisk to accept all domains in a report authorization record, is it possible to use a subdomain wildcard to have one subdomain accept DMARC reports for all other subdomains, like the example below? *.otherdomain.com._report._ [ http://dmarc.sub.otherdomain.com/ | dmarc.sub.otherdomain.com ] . TXT "v=DMARC1" I haven't seen anything directly allowing or excluding it either way. Thanks, Davina N. Thomas The information transmitted, including any attachments, is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited, and all liability arising therefrom is disclaimed. If you received this in error, please contact the sender and delete the material from any computer. PricewaterhouseCoopers LLP is a Delaware limited liability partnership. This communication may come from PricewaterhouseCoopers LLP or one of its subsidiaries. _______________________________________________ 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)
_______________________________________________ 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)
