Erase the autorization on my MacBook of an old email that I don't use for years

I have an ID with an email address that I don't use anymore - and for which I don't have the passwork. It is a company email address.

My device (MacBookPro) is associated with that address. As ADE requires the password to erase the autorization, I'm stucked. I cannot ask for a password change neither.

... Help?