Return Extended EDNS Errors (EDE)

This is a Summary issue. Please open individual issues for individual code points.

There are 25 defined EDE codes. Some will be possible to return easily, others not so. See RFC 8914 for explanation of the error codes.

• 0 - Other
• 1 - Unsupported DNSKEY Algorithm #2715
• 2 - Unsupported DS Digest Type #2715
• 3 - Stale Answer #2267 (closed) (9.18.3, 9.19.1)
• 4 - Forged Answer #3410 (closed) (9.19.5)
• 5 - DNSSEC Indeterminate #2715
• 6 - DNSSEC Bogus #2715
• 7 - Signature Expired #2715
• 8 - Signature Not Yet Valid #2715
• 9 - DNSKEY Missing #2715
• 10 - RRSIGs Missing #2715
• 11 - No Zone Key Bit Set #2715
• 12 - NSEC Missing #2715
• 13 - Cached Error
• 14 - Not Ready
• 15 - Blocked #3410 (closed) (9.19.5)
• 16 - Censored #3410 (closed) (9.19.5)
• 17 - Filtered #3410 (closed) (9.19.5)
• 18 - Prohibited (9.17.21), #3410 (closed) (9.19.5)
• 19 - Stale NXDOMAIN Answer #2267 (closed) (9.18.3, 9.19.1)
• 20 - Not Authoritative
• 21 - Not Supported
• 22 - No Reachable Authority #2268
• 23 - Network Error
• 24 - Invalid Data