RFC 8914 - RPZ extended errors

Per-RPZ-zone configuration to pick EDE code returned for blocked requests configured in a particular RPZ policy:

none No Extended DNS Error code is set (default).

forged Extended DNS Error code 4 - Forged Answer.

blocked Extended DNS Error code 15 - Blocked.

censored Extended DNS Error code 16 - Censored.

filtered Extended DNS Error code 17 - Filtered.

prohibited Extended DNS Error code 18 - Prohibited.