Dns.Extended_errorExtended DNS errors
Standardized in RFC 8914, this is a payload for Edns with a additional information about the cause of a DNS error.
type t =
[ `Other
| `Unsupported_Dnskey_algorithm
| `Unsupported_Ds_digest
| `Stale_answer
| `Forged_answer
| `Dnssec_indeterminate
| `Dnssec_bogus
| `Signature_expired
| `Signature_not_yet_valid
| `Dnskey_missing
| `Rrsigs_missing
| `No_zone_key_bit_set
| `Nsec_missing
| `Cached_error
| `Not_ready
| `Blocked
| `Censored
| `Filtered
| `Prohibited
| `Stale_Nxdomain_answer
| `Not_authoritative
| `Not_supported
| `No_reachable_authority
| `Network_error
| `Invalid_data
| `Unknown of int ]
* string optionval pp : t Fmt.tpp ppf e pretty-prints the error.