Is there any way to find out what selectors are used by a domain in their DKIM record without access to an e-mail send from that domain?
So to clarify, let's say I know example.com has DKIM implemented. I cannot receive an e-mail from example.com as I know no one that works there. Can I still check the existence and validity of the DKIM record even though I do not know the name of the used selector? (or find the selector somehow without e-mail).