diff --git a/app/__init__.py b/app/__init__.py
index 1830e0f8f..988b2b715 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -8,6 +8,7 @@ from flask_sqlalchemy import SQLAlchemy
 from flask_marshmallow import Marshmallow
 from flask_migrate import Migrate
 from monotonic import monotonic
+from notifications_utils.clients import DeskproClient
 from notifications_utils.clients.statsd.statsd_client import StatsdClient
 from notifications_utils.clients.redis.redis_client import RedisClient
 from notifications_utils import logging, request_helper
@@ -34,6 +35,7 @@ loadtest_client = LoadtestingClient()
 mmg_client = MMGClient()
 aws_ses_client = AwsSesClient()
 encryption = Encryption()
+deskpro_client = DeskproClient()
 statsd_client = StatsdClient()
 redis_store = RedisClient()
 performance_platform_client = PerformancePlatformClient()
@@ -58,6 +60,7 @@ def create_app(application):
     db.init_app(application)
     migrate.init_app(application, db=db)
     ma.init_app(application)
+    deskpro_client.init_app(application)
     statsd_client.init_app(application)
     logging.init_app(application, statsd_client)
     firetext_client.init_app(application, statsd_client=statsd_client)
diff --git a/app/config.py b/app/config.py
index 63beae32b..3d0589f43 100644
--- a/app/config.py
+++ b/app/config.py
@@ -103,6 +103,14 @@ class Config(object):
     PERFORMANCE_PLATFORM_ENABLED = False
     PERFORMANCE_PLATFORM_URL = 'https://www.performance.service.gov.uk/data/govuk-notify/'
 
+    # Deskpro
+    DESKPRO_API_HOST = os.environ.get('DESKPRO_API_HOST')
+    DESKPRO_API_KEY = os.environ.get('DESKPRO_API_KEY')
+
+    DESKPRO_DEPT_ID = 5
+    DESKPRO_ASSIGNED_AGENT_TEAM_ID = 5
+    DESKPRO_PERSON_EMAIL = 'donotreply@notifications.service.gov.uk'
+
     # Logging
     DEBUG = False
     NOTIFY_LOG_PATH = os.getenv('NOTIFY_LOG_PATH')
@@ -239,6 +247,11 @@ class Config(object):
             'schedule': crontab(hour=5, minute=10),
             'options': {'queue': QueueNames.PERIODIC}
         },
+        'raise-alert-if-letter-notifications-still-sending': {
+            'task': 'raise-alert-if-letter-notifications-still-sending',
+            'schedule': crontab(hour=16, minute=30),
+            'options': {'queue': QueueNames.PERIODIC}
+        },
         'run-letter-jobs': {
             'task': 'run-letter-jobs',
             'schedule': crontab(hour=17, minute=30),
diff --git a/manifest-api-base.yml b/manifest-api-base.yml
index eea8d8459..301e3e1b7 100644
--- a/manifest-api-base.yml
+++ b/manifest-api-base.yml
@@ -27,6 +27,9 @@ env:
 
   STATSD_PREFIX: null
 
+  DESKPRO_API_KEY: null
+  DESKPRO_API_HOST: null
+
   MMG_URL: null
   MMG_API_KEY: null
   MMG_INBOUND_SMS_AUTH: null
diff --git a/manifest-delivery-base.yml b/manifest-delivery-base.yml
index 78cff9fa5..33f1394ab 100644
--- a/manifest-delivery-base.yml
+++ b/manifest-delivery-base.yml
@@ -26,6 +26,9 @@ env:
 
   STATSD_PREFIX: null
 
+  DESKPRO_API_KEY: null
+  DESKPRO_API_HOST: null
+
   MMG_URL: null
   MMG_API_KEY: null
   MMG_INBOUND_SMS_AUTH: null
diff --git a/requirements.txt b/requirements.txt
index 58823e03b..a36d0099b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,6 +25,6 @@ notifications-python-client==4.7.1
 awscli==1.14.25
 awscli-cwlogs>=1.4,<1.5
 
-git+https://github.com/alphagov/notifications-utils.git@23.4.1#egg=notifications-utils==23.4.1
+git+https://github.com/alphagov/notifications-utils.git@23.5.0#egg=notifications-utils==23.5.0
 
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3