diff --git a/app/cloudfoundry_config.py b/app/cloudfoundry_config.py
index 79af3317a..3a21a7a29 100644
--- a/app/cloudfoundry_config.py
+++ b/app/cloudfoundry_config.py
@@ -49,6 +49,7 @@ def extract_notify_config(notify_config):
     os.environ['SMS_INBOUND_WHITELIST'] = json.dumps(notify_config['credentials']['allow_ip_inbound_sms'])
     os.environ['FIRETEXT_INBOUND_SMS_AUTH'] = json.dumps(notify_config['credentials']['firetext_inbound_sms_auth'])
     os.environ['MMG_INBOUND_SMS_AUTH'] = json.dumps(notify_config['credentials']['mmg_inbound_sms_auth'])
+    os.environ['MMG_INBOUND_SMS_USERNAME'] = json.dumps(notify_config['credentials']['mmg_inbound_sms_username'])
     os.environ['ROUTE_SECRET_KEY_1'] = notify_config['credentials']['route_secret_key_1']
     os.environ['ROUTE_SECRET_KEY_2'] = notify_config['credentials']['route_secret_key_2']
 
diff --git a/app/config.py b/app/config.py
index 356b0cad2..0c4b477c6 100644
--- a/app/config.py
+++ b/app/config.py
@@ -301,6 +301,7 @@ class Config(object):
     SMS_INBOUND_WHITELIST = json.loads(os.environ.get('SMS_INBOUND_WHITELIST', '[]'))
     FIRETEXT_INBOUND_SMS_AUTH = json.loads(os.environ.get('FIRETEXT_INBOUND_SMS_AUTH', '[]'))
     MMG_INBOUND_SMS_AUTH = json.loads(os.environ.get('MMG_INBOUND_SMS_AUTH', '[]'))
+    MMG_INBOUND_SMS_USERNAME = json.loads(os.environ.get('MMG_INBOUND_SMS_USERNAME', '[]'))
 
     ROUTE_SECRET_KEY_1 = os.environ.get('ROUTE_SECRET_KEY_1', '')
     ROUTE_SECRET_KEY_2 = os.environ.get('ROUTE_SECRET_KEY_2', '')
@@ -378,6 +379,7 @@ class Test(Config):
     SMS_INBOUND_WHITELIST = ['203.0.113.195']
     FIRETEXT_INBOUND_SMS_AUTH = ['testkey']
     MMG_INBOUND_SMS_AUTH = ['testkey']
+    MMG_INBOUND_SMS_USERNAME = ['username']
     TEMPLATE_PREVIEW_API_HOST = 'http://localhost:9999'
 
 
diff --git a/app/notifications/receive_notifications.py b/app/notifications/receive_notifications.py
index 0192bf6fd..c6bf80811 100644
--- a/app/notifications/receive_notifications.py
+++ b/app/notifications/receive_notifications.py
@@ -35,7 +35,8 @@ def receive_mmg_sms():
     if not auth:
         current_app.logger.warning("Inbound sms (MMG) no auth header")
         # abort(401)
-    elif auth.username != 'mmg_co_2017' or auth.password not in current_app.config['MMG_INBOUND_SMS_AUTH']:
+    elif auth.username not in current_app.config['MMG_INBOUND_SMS_USERNAME'] \
+            or auth.password not in current_app.config['MMG_INBOUND_SMS_AUTH']:
         current_app.logger.warning("Inbound sms (MMG) incorrect username ({}) or password".format(auth.username))
         # abort(403)
 
diff --git a/tests/app/notifications/test_receive_notification.py b/tests/app/notifications/test_receive_notification.py
index 4642c433d..02898d564 100644
--- a/tests/app/notifications/test_receive_notification.py
+++ b/tests/app/notifications/test_receive_notification.py
@@ -44,7 +44,7 @@ def mmg_post(client, data, auth=True, password='testkey'):
     ]
 
     if auth:
-        auth_value = base64.b64encode("notify:{}".format(password).encode('utf-8')).decode('utf-8')
+        auth_value = base64.b64encode("username:{}".format(password).encode('utf-8')).decode('utf-8')
         headers.append(('Authorization', 'Basic ' + auth_value))
 
     return client.post(
@@ -438,7 +438,15 @@ def test_mmg_inbound_sms_auth(notify_db_session, notify_api, client, mocker, aut
         service_name='b', inbound_number='07111111111', service_permissions=[EMAIL_TYPE, SMS_TYPE, INBOUND_SMS_TYPE]
     )
 
-    data = "source=07999999999&destination=07111111111&message=this is a message&time=2017-01-01 12:00:00"
+    data = {
+        "ID": "1234",
+        "MSISDN": "07111111111",
+        "Message": "Some message to notify",
+        "Trigger": "Trigger?",
+        "Number": "testing",
+        "Channel": "SMS",
+        "DateRecieved": "2012-06-27 12:33:00"
+    }
 
     with set_config(notify_api, 'MMG_INBOUND_SMS_AUTH', keys):
         response = mmg_post(client, data, auth=bool(auth), password=auth)
diff --git a/tests/app/test_cloudfoundry_config.py b/tests/app/test_cloudfoundry_config.py
index fa802afca..aafd894c7 100644
--- a/tests/app/test_cloudfoundry_config.py
+++ b/tests/app/test_cloudfoundry_config.py
@@ -19,6 +19,7 @@ def notify_config():
             'allow_ip_inbound_sms': ['111.111.111.111', '100.100.100.100'],
             'firetext_inbound_sms_auth': ['testkey'],
             'mmg_inbound_sms_auth': ['testkey'],
+            'mmg_inbound_sms_username': ['username'],
             'route_secret_key_1': "key_1",
             'route_secret_key_2': ""
         }
@@ -240,6 +241,13 @@ def test_mmg_inbound_sms_auth_config():
     assert os.environ['MMG_INBOUND_SMS_AUTH'] == json.dumps(['testkey'])
 
 
+@pytest.mark.usefixtures('os_environ', 'cloudfoundry_environ')
+def test_mmg_inbound_sms_username_config():
+    extract_cloudfoundry_config()
+
+    assert os.environ['MMG_INBOUND_SMS_USERNAME'] == json.dumps(['username'])
+
+
 @pytest.mark.usefixtures('os_environ', 'cloudfoundry_environ')
 def test_performance_platform_config():
     extract_cloudfoundry_config()