It appears that Simplelists - Andy Beverley via mailop <a...@simplelists.com> said: >A query for _dmarc.gcu.edu.dmarc.has.pphosted.com results in a NOERROR >response, while a query for its ancestor, edu.dmarc.has.pphosted.com, >returns a name error (NXDOMAIN), which indicates that subdomains of >edu.dmarc.has.pphosted.com, including >_dmarc.gcu.edu.dmarc.has.pphosted.com, don't exist. See RFC 8020, Sec. 2. > >I'm not sure that's related, but it surely doesn't help.
It probably is. If a client does qname minimization, it will check edu.dmarc.has.pphosted.com before the subdomains and if it gets NXDOMAIN it will stop and return a NXDOMAIN for the original query. R's, John _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
