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DKIM

What is a DKIM record?

DKIM (DomainKeys Identified Mail) is an email authentication method designed to detect email spoofing. It allows the receiver to check that an email claimed to have come from a specific domain was indeed authorized by the owner of that domain. Here's an overview of DKIM records:

Structure

A DKIM record is a TXT record in your domain's DNS. It typically looks like this:

selector._domainkey.example.com. IN TXT "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3QEKyU1fSma0axspqYK5iAj+54lsAg4qRRCnpKK68hawSd8zpsDz77ntGCR0X2mHVvkHbx2JHjofLSqvbaqJ8lm4t6CwwRGqBhsf+5MutuzeNxZ3/9uBNF015agq+CXvHA9vCAQzqDpyQV/t51C6OCALRD6Wu/Nnsx6YgNgQhwwIDAQAB"

Components

  • Selector: A string that identifies which DKIM key to use (e.g., "selector")
  • _domainkey: A fixed string
  • Domain: Your domain name (e.g., example.com)
  • Record content: Includes version, key type, and public key

Example

Name Type Value
default._domainkey.example.com TXT "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu0ey4Xd8LTqG8O7jZMXJb5eak+NowZwTD1PLQHdxRZcVf/9gNzU5zsc9e0pouPCqhGVzRlEZYEbPfLtelcVAuoVk6Au5ncpM3HD8S9jPs85XORSMMjHWqDvdJlZcOAJTO9PBxWwLU3l2Wf0+M2nGErkPOKwJH9Oa2dmAnAO5+yvE6U73VCgHHHPFpN7UyjbQoSIqsOy+hVGjEUALy5PRjTeVJJ66Y+oIbSFnLsxG8lMOugaCJdZkS5I2Nop/PiD0sC2EG+QPONCe4IHzY6d+tGAJKN3zltjOpI3ct1u/08f2x4MpsbBZSSokoiE+aV4Hj6FimFocIJwlqDbjIwY2fwIDAQAB"

Tibus may be able to assist in generating required DKIM records: Get Support