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 planttrader.biz
Found
Selector: default
(TXT on default._domainkey.planttrader.biz)
v=DKIM1; p=
Selector: selector1
(TXT on selector1._domainkey.planttrader.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwy/hgDoXk5lxB4xcilS23BbdRdeLdNOhcmPBblmCS+K4cmitIky/GFXZkh+qFsBgWOJo4ORj3Yow/5C6Rx4Np/wGya9CPKlPe4EPCd5r5w+5GjZawrkWPUjLqX9ypoIdnaSQI/pzxQMLW3P8SMlXUKWZ4TGcn9sFKiCDDH70iCt67cfJFiQYJ4N4gitaTkGyRBVFY5BOhxI2MHPqSHJd/ivzdXuU4eyl31HZU1AiKzv7zc/vtwvWSOh6ju5zy9/On5+bJ/BybWeRQr2oqPPCxq78Zg5XiJAFY6xq2C4fANFAj9c+Y3I2JB53i3tYXXf8ArSQ2wOm0XWquBnCaFQ1YQIDAQAB;
Selector: google
(TXT on google._domainkey.planttrader.biz)
v=DKIM1; p=
Selector: mail
(TXT on mail._domainkey.planttrader.biz)
v=DKIM1; p=
Selector: smtp
(TXT on smtp._domainkey.planttrader.biz)
v=DKIM1; p=
Selector: dkim
(TXT on dkim._domainkey.planttrader.biz)
v=DKIM1; p=
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.