DKIM finding
No DKIM signature
The message carries no DKIM-Signature header, so no cryptographic proof ties it to the sending domain.
Finding code
dkim_missing
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.
Add a DKIM signature to outgoing mail. Most email service providers sign automatically; if you run your own MTA, generate a key pair and publish the public key as a TXT record at selector._domainkey.yourdomain.com.
Related DKIM findings
Other things we check.
| Finding | What it means |
|---|---|
dkim_signature_invalid
|
Invalid 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 |