diff --git a/homeassistant/components/notify/clicksend.py b/homeassistant/components/notify/clicksend.py
index 5506d6ed6d040d..faf30ac7cc667f 100644
--- a/homeassistant/components/notify/clicksend.py
+++ b/homeassistant/components/notify/clicksend.py
@@ -7,51 +7,41 @@
 import json
 import logging
 
-from aiohttp.hdrs import CONTENT_TYPE
 import requests
 import voluptuous as vol
+from aiohttp.hdrs import CONTENT_TYPE
 
+import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import (
     CONF_API_KEY, CONF_RECIPIENT, CONF_SENDER, CONF_USERNAME,
     CONTENT_TYPE_JSON)
-import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
 BASE_API_URL = 'https://rest.clicksend.com/v3'
-
 DEFAULT_SENDER = 'hass'
+TIMEOUT = 5
 
 HEADERS = {CONTENT_TYPE: CONTENT_TYPE_JSON}
 
 
-def validate_sender(config):
-    """Set the optional sender name if sender name is not provided."""
-    if CONF_SENDER in config:
-        return config
-    config[CONF_SENDER] = DEFAULT_SENDER
-    return config
-
-
 PLATFORM_SCHEMA = vol.Schema(
     vol.All(PLATFORM_SCHEMA.extend({
         vol.Required(CONF_USERNAME): cv.string,
         vol.Required(CONF_API_KEY): cv.string,
         vol.Required(CONF_RECIPIENT, default=[]):
             vol.All(cv.ensure_list, [cv.string]),
-        vol.Optional(CONF_SENDER): cv.string,
-    }), validate_sender))
+        vol.Optional(CONF_SENDER, default=DEFAULT_SENDER): cv.string,
+    }),))
 
 
 def get_service(hass, config, discovery_info=None):
     """Get the ClickSend notification service."""
-    print("#### ", config)
-    if _authenticate(config) is False:
-        _LOGGER.exception("You are not authorized to access ClickSend")
+    if not _authenticate(config):
+        _LOGGER.error("You are not authorized to access ClickSend")
         return None
-
     return ClicksendNotificationService(config)
 
 
@@ -60,10 +50,10 @@ class ClicksendNotificationService(BaseNotificationService):
 
     def __init__(self, config):
         """Initialize the service."""
-        self.username = config.get(CONF_USERNAME)
-        self.api_key = config.get(CONF_API_KEY)
-        self.recipients = config.get(CONF_RECIPIENT)
-        self.sender = config.get(CONF_SENDER)
+        self.username = config[CONF_USERNAME]
+        self.api_key = config[CONF_API_KEY]
+        self.recipients = config[CONF_RECIPIENT]
+        self.sender = config[CONF_SENDER]
 
     def send_message(self, message="", **kwargs):
         """Send a message to a user."""
@@ -77,28 +67,29 @@ def send_message(self, message="", **kwargs):
             })
 
         api_url = "{}/sms/send".format(BASE_API_URL)
-
-        resp = requests.post(
-            api_url, data=json.dumps(data), headers=HEADERS,
-            auth=(self.username, self.api_key), timeout=5)
+        resp = requests.post(api_url,
+                             data=json.dumps(data),
+                             headers=HEADERS,
+                             auth=(self.username, self.api_key),
+                             timeout=TIMEOUT)
+        if resp.status_code == 200:
+            return
 
         obj = json.loads(resp.text)
-        response_msg = obj['response_msg']
-        response_code = obj['response_code']
-
-        if resp.status_code != 200:
-            _LOGGER.error("Error %s : %s (Code %s)", resp.status_code,
-                          response_msg, response_code)
+        response_msg = obj.get('response_msg')
+        response_code = obj.get('response_code')
+        _LOGGER.error("Error %s : %s (Code %s)", resp.status_code,
+                      response_msg, response_code)
 
 
 def _authenticate(config):
     """Authenticate with ClickSend."""
     api_url = '{}/account'.format(BASE_API_URL)
-    resp = requests.get(
-        api_url, headers=HEADERS, auth=(config.get(CONF_USERNAME),
-                                        config.get(CONF_API_KEY)), timeout=5)
-
+    resp = requests.get(api_url,
+                        headers=HEADERS,
+                        auth=(config[CONF_USERNAME],
+                              config[CONF_API_KEY]),
+                        timeout=TIMEOUT)
     if resp.status_code != 200:
         return False
-
     return True