Verify your DKIM DNS record is correctly published and properly formatted. Enter your domain and selector below to instantly validate your DKIM configuration.
DomainKeys Identified Mail (DKIM) is an email authentication method that allows the sender to digitally sign outgoing messages. The receiving mail server can then verify this signature using a public key published in the sender's DNS records.
DKIM works by adding a cryptographic signature to the email header. When you send an email, your mail server signs certain parts of the message (headers, body, or both) with a private key. The corresponding public key is stored as a TXT record in DNS under the format selector._domainkey.yourdomain.com.
A valid DKIM record is essential for email deliverability. Together with SPF and DMARC, DKIM forms the foundation of modern email authentication, helping protect your domain from spoofing and improving your chances of reaching the inbox.
Monitor your DKIM, SPF, and DMARC records continuously. Get alerted the moment something breaks so you can fix it before deliverability suffers.
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