I was actually looking at the comodo website to figure out if I can submit revokation on my own (we&#x27;ve got the key after all...). Gave up after looking at 20+ pages. Apart from a login site for email cert revocation, I can&#x27;t find any reasonable contact.<p>Comodo website is not that good apparently.<p>Edit: in the document posted by brohee: (about authentication for certs revocation) &quot;OR the  Subscriber
must be able to send an S&#x2F;MIME email signed with the private key associated with the Certificate&quot;. That&#x27;s doable :)