in /etc/letsencrypt/accounts/acme-v01.api.letsencrypt.org/directory/ there is an account that has the e-mail address that I provided for my first domain. I didn’t want the second domain (belonging to someone else) to somehow share an account, so I moved the accounts folder, in order to create a new account.
Do accounts matter? Can I just use one account for hundreds of domains, belonging to hundreds of people, as long as I pass on the right email address? What happens when I “lose” my account (key)?