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> LookupMX and Resolver.LookupMX now return DNS names that look like valid IP address, as well as valid domain names. Previously if a name server returned an IP
by tete 1y ago
> LookupMX and Resolver.LookupMX now return DNS names that look like valid IP address, as well as valid domain names. Previously if a name server returned an IP address as a DNS name, LookupMX would discard it, as required by the RFCs. However, name servers in practice do sometimes return IP addresses.
Ah, intentionally making code not standards compliant.
- thiht 1y agoReality compliant > standards compliant.
- porridgeraisin 1y agoStandards are toilet paper in the general case. Only in the rare cases where reality matches it does it matter.Anyone can write anything on a piece of paper. What code is executing on the DNS server at the end of the day is what matters.