diff --git a/app/models.py b/app/models.py
index ba6424f733b02a4d21b220fbcd19dda211a79024..91955841ea7905c53b3cd50f2e863cdf10049e06 100644
--- a/app/models.py
+++ b/app/models.py
@@ -434,6 +434,19 @@ class NotificationEmailData(db.Model):
     notify_status = db.Column(db.String(16), default=None)
     creation_date = db.Column(db.DateTime(), default=datetime.utcnow)
 
+    def __repr__(self):
+        '''
+        String representation of the NotificationEmailData. For human readability.
+        '''
+        return '<NotificationData %r>' % self.id  # TODO: Why not .format()?
+
+    def to_dict(self):
+        return {'id': self.id,
+                'job_id': self.job_id,
+                'job': self.job,
+                'notify_status': self.notify_status,
+                'creation_date': self.creation_date}
+
 
 class CorpusFile(db.Model):
     '''
diff --git a/docker-compose.yml b/docker-compose.yml
index dc4d7f86528b0c80adfd1d067409fe965678157e..51c0449de68de83a5541e5c1430ff112c8b274c1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -52,23 +52,11 @@ services:
       - "./logs:/home/nopaqued/logs"
       - "../opaque_daemon/docker-entrypoint.sh:/usr/local/bin/docker-entrypoint.sh"
       - "../opaque_daemon/nopaqued.py:/home/nopaqued/nopaqued.py"
+      - "../opaque_daemon/decorators.py:/home/nopaqued/decorators.py"
+      - "../opaque_daemon/notify:/home/nopaqued/notify"
+      - "../opaque_daemon/templates:/home/nopaqued/templates"
       - "../opaque_daemon/requirements.txt:/home/nopaqued/requirements.txt"
       - "$HOME/.docker:/home/nopaqued/.docker"
-  notify:
-    depends_on:
-      - db
-    env_file: nopaque.env
-    extra_hosts:
-      - "host.docker.internal:172.17.0.1"
-    image: gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/opaque_notify:latest
-    volumes:
-      - "./logs:/home/nopaquen/logs"
-      - "../opaque_notify/docker-entrypoint.sh:/usr/local/bin/docker-entrypoint.sh"
-      - "../opaque_notify/nopaquen.py:/home/nopaquen/nopaquen.py"
-      - "../opaque_notify/notify:/home/nopaquen/notify"
-      - "../opaque_notify/templates:/home/nopaquen/templates"
-      - "../opaque_notify/requirements.txt:/home/nopaquen/requirements.txt"
-      - "$HOME/.docker:/home/nopaquen/.docker"
   db:
     env_file: nopaque.env
     image: postgres:11
diff --git a/nopaque.env.tpl b/nopaque.env.tpl
index 6e39a0e05a068088a1660b814fb4f49cb3e1e124..e7efeb1f585406fd104791cfae65c81a4a30c413 100644
--- a/nopaque.env.tpl
+++ b/nopaque.env.tpl
@@ -23,6 +23,9 @@ MAIL_USE_TLS=
 MAIL_USERNAME=
 MAIL_PASSWORD=
 
+### Opaque Notifications ###
+OPAQUE_DOMAIN=
+
 ### nopaque ###
 NOPAQUE_ADMIN=
 NOPAQUE_MAIL_SENDER=