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Verifying Your DKIM/DomainKeys Setup

If you sign your messages with DKIM/DomainKeys, you can:

  1. Verify that your messages are signed
  2. Find out which selector your messages use and find errors in your DKIM/DomainKeys setup
  3. Check the message signature

Tip: For information about DKIM/DomainKeys, see DKIM/DomainKeys Overview.

To verify that your messages are signed

If your messages are signed, the Standard Message report displays the Authentication section as shown in the following illustrations.This section does not appear if the message was not signed.


To find out which selector your messages use

The DKIM/DomainKeys section in the Message Summary section on the Schedule Message page shows the selector and domain of the message signature as shown in the following illustration. This section also show errors in your DKIM/DomainKeys setup.

To check the message signature

To see the actual message signature, send a message to Yahoo's DomainKeys auto responder at The auto responder will respond with an email that states: Your message has been verified. The response shows all headers in your original message, including the DomainKeys-Signature header with the message signature.