core/homeassistant/components/smtp/strings.json

{
  "services": {
    "reload": {
      "name": "[%key:common::action::reload%]",
      "description": "Reloads smtp notify services."
    }
  },
  "exceptions": {
    "remote_path_not_allowed": {
      "message": "Cannot send email with attachment '{file_name}' form directory '{file_path}' which is not secure to load data from. Only folders added to `{allow_list}` are accessible. See {url} for more information."
    }
  }
}