diff --git a/homeassistant/components/asterisk_mbox.py b/homeassistant/components/asterisk_mbox.py
index c1dafb87a6d..0b5e7c1e1d7 100644
--- a/homeassistant/components/asterisk_mbox.py
+++ b/homeassistant/components/asterisk_mbox.py
@@ -1,34 +1,34 @@
-"""Support for Asterisk Voicemail interface."""
+"""
+Support for Asterisk Voicemail interface.
 
+For more details about this component, please refer to the documentation at
+https://home-assistant.io/components/asterisk_mbox/
+"""
 import logging
 
 import voluptuous as vol
 
-
-import homeassistant.helpers.config_validation as cv
-from homeassistant.helpers import discovery
-from homeassistant.const import (CONF_HOST,
-                                 CONF_PORT, CONF_PASSWORD)
-
+from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_PORT
 from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import (async_dispatcher_connect,
-                                              async_dispatcher_send)
+from homeassistant.helpers import discovery
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.dispatcher import (
+    async_dispatcher_connect, async_dispatcher_send)
 
 REQUIREMENTS = ['asterisk_mbox==0.4.0']
 
-SIGNAL_MESSAGE_UPDATE = 'asterisk_mbox.message_updated'
-SIGNAL_MESSAGE_REQUEST = 'asterisk_mbox.message_request'
+_LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'asterisk_mbox'
 
-_LOGGER = logging.getLogger(__name__)
-
+SIGNAL_MESSAGE_REQUEST = 'asterisk_mbox.message_request'
+SIGNAL_MESSAGE_UPDATE = 'asterisk_mbox.message_updated'
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
         vol.Required(CONF_HOST): cv.string,
-        vol.Required(CONF_PORT): int,
         vol.Required(CONF_PASSWORD): cv.string,
+        vol.Required(CONF_PORT): int,
     }),
 }, extra=vol.ALLOW_EXTRA)
 
@@ -43,7 +43,7 @@ def setup(hass, config):
 
     hass.data[DOMAIN] = AsteriskData(hass, host, port, password)
 
-    discovery.load_platform(hass, "mailbox", DOMAIN, {}, config)
+    discovery.load_platform(hass, 'mailbox', DOMAIN, {}, config)
 
     return True
 
@@ -68,15 +68,14 @@ class AsteriskData(object):
         from asterisk_mbox.commands import CMD_MESSAGE_LIST
 
         if command == CMD_MESSAGE_LIST:
-            _LOGGER.info("AsteriskVM sent updated message list")
-            self.messages = sorted(msg,
-                                   key=lambda item: item['info']['origtime'],
-                                   reverse=True)
-            async_dispatcher_send(self.hass, SIGNAL_MESSAGE_UPDATE,
-                                  self.messages)
+            _LOGGER.debug("AsteriskVM sent updated message list")
+            self.messages = sorted(
+                msg, key=lambda item: item['info']['origtime'], reverse=True)
+            async_dispatcher_send(
+                self.hass, SIGNAL_MESSAGE_UPDATE, self.messages)
 
     @callback
     def _request_messages(self):
         """Handle changes to the mailbox."""
-        _LOGGER.info("Requesting message list")
+        _LOGGER.debug("Requesting message list")
         self.client.messages()