expected behavior: instead of failing at the acmetool step which could affect the letsencrypt rate limit, if I have a necessary subdomain like iroh.$mail_domain not set, it should refuse to run.
actual behavior: it just runs. actually not even cmdeploy dns warns us about the missing subdomain atm.
iroh.$mail_domain
not set, it should refuse to run.cmdeploy dns
warns us about the missing subdomain atm.