Puntuado con 4 de 5 estrellas

This is great as it could help verify DKIM signs. However, it does NOT like a good idea to solely use this extension to tell if the email is forged or not:

Today I just received an phishing mail and I configured mails to be forwarded by mailgun to my gmail. DKIM verifier says that it is signed by my domain with a yellow warning. If you enable "Read Authentication-Results header" in options it just shows valid (with my domain) and spf pass without any warnings. However, the correct mail auth info before forwarding is inside the ARC headers, and DKIM Verifier does not read this.