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 sberbank.ru
Found
Selector: dkim
(TXT on dkim._domainkey.sberbank.ru)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArtQDG8a1M8ZrCx21JrIu9zTaUa6FMMivFicTrCmawLqg09cimBrAgXC+flKmfzHAG6Jz2H4tdqUFUu7JSEDoeLolap9RNETSlI7Qv6ChKYkUkbdVQ7X768bzxSWyo3jEi0+JP4YUL8ZqL8MTOcbdW1MdI8bfox0/ILLYMubM5gaXjjNvh/7G5g2dy3NXFzheaBLqbExHQPR6/ZHa7dUCnC7kb7XRAoLzx1tNcBEgbBiXK4JPqOfjQHud2Z+O7wegK8I/L5Jvo0mi7upep1yo0nTDoMH1ATbTkbV39IQ9FH3FlAk90c8eyxlQzGvk9lp7i3hE23E4J15zFQUKAg6MfwIDAQAB
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.