DKIM Record Checker
DKIM signs outgoing emails. Receivers verify the signature using a public key in DNS.
DKIM lives on <selector>._domainkey.<domain>. If selector is empty, we try common ones.
Result for interapostas.com
Found
Selector: selector1
(TXT on selector1._domainkey.interapostas.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCuagZy3A08Qd80w3Q3wcFZlFOyYHTkvE/uOiCU1Ym7X15Y70IF6QsEpoBMV8gcXIfVqwPRLk9vV208/OOJ4Uyh+VitYIGgBJOp1vwdFJtyjEoXTvKypcln9dvzA3kOuq3xyQ68uGHjNMPsjyoH6HaeyGMS+0N7BhMWakX7G5wVPQIDAQAB; n=1024,1455698647,1471423447
Selector: selector2
(TXT on selector2._domainkey.interapostas.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNK35LYnXUb/kh/0ThxGpIvWY98QGJ5NUwWMxcwqUq2QbyMs38rBKyiBaRplNKyRgRSff3UklQKC41T76XlfCcn+M1Y4CGsVwVHy62X1hETi2hYac7vlbwdeq8Ffeq1o1Php7L6H0fWRgc3vu7jdbuDUdp2AY9nH16kEh7yOlrXQIDAQAB; n=1024,1455698648,1
FAQ
Why does DKIM require a selector?
Selectors allow rotating keys and running multiple keys per domain.
Where is DKIM published?
TXT on <selector>._domainkey.<domain>.
DKIM record exists but emails still fail DKIM?
Signing may be disabled or the selector used in email differs from DNS.
Do I need DKIM if I have SPF?
Yes, many providers use both for best deliverability and DMARC alignment.
Can I have multiple DKIM selectors?
Yes, that is common for key rotation or multiple senders.
What is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails. DNS stores a public key that allows receivers to verify authenticity.
Example
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0B...
Common mistakes
- Wrong selector (the record exists but under a different selector).
- Key is split incorrectly across multiple TXT chunks (some DNS UIs break it).
- Publishing DKIM but not enabling signing on the mail provider.