diff --git a/authenticator.py b/authenticator.py
index 765cf5b..d40dec2 100755
--- a/authenticator.py
+++ b/authenticator.py
@@ -20,8 +20,7 @@ def setup_logger():
     ch = logging.StreamHandler()
     ch.setLevel(logging.INFO)
 
-    formatter = logging.Formatter(
-        '%(asctime)s - %(name)s- %(levelname)s - %(message)s')
+    formatter = logging.Formatter('%(asctime)s - %(name)s- %(levelname)s - %(message)s')
     ch.setFormatter(formatter)
     # add handler to logger
     logger.addHandler(ch)
@@ -32,10 +31,7 @@ def setup_logger():
 def load_config(logger):
     try:
         config_path = os.path.join(
-            os.path.expanduser("~"),
-            ".certbot_dns_corenetworks",
-            "config.ini"
-        )
+            os.path.expanduser("~"), ".certbot_dns_corenetworks", "config.ini")
         config = configparser.ConfigParser()
         config.read(config_path)
 
@@ -47,7 +43,7 @@ def load_config(logger):
         data["ZONE"] = config['DNS']['ZONE']
     except KeyError, e:
         logger.error("Key %s not found in config" % (e))
-        sys.exit(0)
+        sys.exit(1)
 
     return data
 
@@ -65,7 +61,7 @@ def get_auth_token(user, passwd, host, logger):
         r.raise_for_status()
     except requests.exceptions.HTTPError, e:
         logger.error(e)
-        sys.exit(0)
+        sys.exit(1)
 
     return r
 
@@ -79,7 +75,35 @@ def get_zone(token, host, zone, logger):
         r.raise_for_status()
     except requests.exceptions.HTTPError, e:
         logger.error(e)
-        sys.exit(0)
+        sys.exit(1)
+
+    return r
+
+
+def set_record(token, host, zone, logger):
+    url = urlparse.urljoin(host, os.path.join("dnszones", zone, "records/"))
+    headers = {"Authorization": "Bearer %s" % (token)}
+
+    try:
+        certbot_domain = "_acme-challenge.%s" % (os.environ['CERTBOT_DOMAIN'])
+        certbot_validation = os.environ['CERTBOT_VALIDATION']
+    except KeyError, e:
+        logger.error("Environment Variable %s not set" % (e))
+        sys.exit(1)
+
+    data = {}
+    data["name"] = certbot_domain
+    data["ttl"] = 120
+    data["type"] = "TXT"
+    data["data"] = certbot_validation
+    json_data = json.dumps(data)
+
+    try:
+        r = requests.post(url, headers=headers, data=json_data)
+        r.raise_for_status()
+    except requests.exceptions.HTTPError, e:
+        logger.error(e)
+        sys.exit(1)
 
     return r
 
@@ -92,8 +116,7 @@ def main():
 
     # get auth token
     logger.info("Try to get auth token")
-    r_token = get_auth_token(
-        config["API_USER"], config["PASSWORD"], config["API_HOST"], logger)
+    r_token = get_auth_token(config["API_USER"], config["PASSWORD"], config["API_HOST"], logger)
     auth_token = r_token.json()["token"]
     logger.info("Authentication successful")
 
@@ -105,9 +128,12 @@ def main():
     if zone_active:
         logger.info("Zone '%s' verified (active)" % (zone_name))
     else:
-        logger.error(
-            "Zone '%s' verified (not active)" % (zone_name))
-        sys.exit(0)
+        logger.error("Zone '%s' verified (not active)" % (zone_name))
+        sys.exit(1)
+
+    # add txt record
+    z_record = set_record(auth_token, config["API_HOST"], zone_name, logger)
+    print z_record
 
 
 if __name__ == "__main__":