phoffman> Do we know whether typical PTR checks look for existence or phoffman> matching?
johnl> The ones I know all look for matching. For MX/spam and for VPNs, seems to want matching. For more "fringe" uses like NYT web, seems to just want a non-NXDOMAIN response. I'd be nervous about wildcard more because there seems to be a fair amount of variation in implementations (or folks who don't read RFCs but play with DNS...). _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
