DKIM finding
Invalid DKIM signature
The DKIM signature is present but does not verify. The message may have been altered in transit, or the signing configuration is broken.
Finding code
dkim_signature_invalid
This finding appears in the findings array of
the spam checker and
the POST /v1/sender API response when the
condition above is detected.
How to fix it
The fix.
The DKIM signature did not verify. This usually means the message was modified in transit, a relay rewrote the body or headers, or the signing configuration is broken. Check that the canonicalization matches what intermediaries do.
Related DKIM findings
Other things we check.
| Finding | What it means |
|---|---|
dkim_missing
|
No DKIM signature |
dkim_key_not_found
|
DKIM public key not found |
dkim_weak_key
|
Weak DKIM key |
dkim_body_hash_mismatch
|
DKIM body hash mismatch |
dkim_alignment_fail
|
DKIM alignment failure |