I know it SHOULD work like that but it’s not. Apparently when the external domains can’t be renewed, the BOX certificate isn’t renewed either. Here is the error mail I am getting (some information has been removed, like IPs, etc.):
Something unexpected went wrong: [NeedToInstallFile('http://box.mydomain.tld/.well-known/acme-challenge/xxxxxxxxxxxxxxxxxxxxxx', 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxx', 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx')]
TLS certificates could not be provisoned for:
mydomain.tld: Domain control validation cannot be performed for this domain because DNS points the domain to another machine (A 00.000.000.00).
www.mydomain.tld: Domain control validation cannot be performed for this domain because DNS points the domain to another machine (A 00.000.000.00)