hubot-mailgun-generic-email-endpoint.coffee

  robot.router.post '/hubot/an-endpoint', (req, res) ->
    payload = req.body || { recipient: null }
    unless payload.recipient == 'my-mailgun@email-address'
      res.writeHead(403)
      res.end()
      return

    res.writeHead(204)
    res.end()
    att =
      color: '#dedede'
      fields: []
      fallback: 'Email received'
      thumb_url: null
      title: payload.subject
      title_link: null
      pretext: ':inbox_tray: メールを受信したよ'
      text: payload['body-plain']
      author_name: payload.from
      author_link: null
      author_icon: null
      ts: payload.timestamp

    robot.messageRoom '#sandbox', attachments: [att]