protocol lmtp {
  # postmaster_address aparentemente es obligatorio
  postmaster_address = {{ with getv "/postmaster/address" }}{{.}}{{ else }}postmaster@{{ index (split (index (split (getv "/mail/domains") " ") 0) ",") 0 }}{{ end }}
  mail_plugins = $mail_plugins {{ if eq (getv "/sieve/enable") "yes" }}sieve{{end}}
}