userx@alias-eximtesthost.test.ex
    <-- userx@alias-eximtesthost
  router = dns, transport = smtp
  host eximtesthost.test.ex [ip4.ip4.ip4.ip4]
userx@alias-eximtesthost.test.ex
  router = dns, transport = smtp
  host eximtesthost.test.ex [ip4.ip4.ip4.ip4]