Difference Between DomainKey And DKIM

Difference Between DomainKey And DKIM

DomainKeys Identified Mail (DKIM) is the successor of Yahoo DomainKeys. Both DomainKey and DKIM have similarities, however, DKIM has an additional aspect of Cisco’s Identified Internet Mail standard (IIM). The enhancement of this standard gives more flexibility and security than DomainKeys alone. Below is the list of main differences between DKIM and DomainKeys:

Key differences include:

  1. DKIM supports stronger and multiple cryptographic algorithms (such as RSA-SHA256), while DomainKeys supported only a single, weaker algorithm.

  2. DKIM provides more granular control over signing and validating both email headers and the message body.

  3. DKIM offers improved and standardized support for third-party email signing.

  4. DKIM cryptographically protects its own signature header, helping detect unauthorized modifications.

  5. DKIM introduces structured selectors and tagging mechanisms for better key management.

  6. DKIM supports signature timestamps and expiration, limiting the validity period of a signature.


    • Related Articles

    • What is the difference between DKIM results and DKIM?

      DKIM (DomainKeys Identified Mail) is an email authentication method which makes sure your messages aren’t altered during the transaction between the sending and recipient servers. Typically, DKIM provides a key and signature that makes a user ...

    • How Is DMARC Records Different From SPF And DKIM?

      SPF (Sender Policy Framework) is a DNS TXT record that defines which mail servers are authorized to send emails on behalf of a specific domain. It helps prevent unauthorized systems from spoofing your domain. Since SPF is published in DNS, only the ...

    • DKIM setup for office365

      Enabling DKIM for o365 In order to DKIM sign your custom domain emails, you will need to complete the following steps: Sign in to Office 365 using your admin account and choose Admin Once in the Admin center, expand Admin centers and choose Exchange. ...

    • What Is DKIM?

      What Is DKIM? DKIM (DomainKeys Identified Mail) is an email authentication method that uses cryptographic signatures to verify that an email message was authorized by the sending domain and has not been altered during transit. When an email is sent, ...

    • What is DKIM?

      DomainKeys Identified Mail (DKIM) signature proves that the email is authentic and that the sender was authorized to use the domain name in the sender address. DKIM is defined in RFC 6376. To use DKIM, an RSA key pair is created by the system that ...