If I'm understanding you correctly, you want an "alls clear" message to confirm email sending? I'm leaving that up to the plugin to handle how they want, like:
```python
    @respond_to("^send test email to on fire list", multiline=True)
    def test_on_fire_emails(self, message):
        on_fire_list = self.load("on_fire_list", [])

        self.send_email(
            from_email="TEST ERROR <errors@scrapbin.com>",
            email_list=on_fire_list,
            subject="Test Website 500 error -- just kidding!",
            message="Everything is fine :)"
        )

        self.say("Sent out the test email", message=message)
```
How does that feel? I think that makes sense, I don't feel like `send_email` should say anything.