diff --git a/invenio_users_resources/entity_resolvers.py b/invenio_users_resources/entity_resolvers.py
index d0449ca..7c77d10 100644
--- a/invenio_users_resources/entity_resolvers.py
+++ b/invenio_users_resources/entity_resolvers.py
@@ -16,7 +16,7 @@
 from invenio_records_resources.references.entity_resolvers import (
     EntityProxy,
     EntityResolver,
-    ResultItemResolver,
+    ServiceResultResolver,
 )
 
 from .proxies import current_users_service
@@ -86,7 +86,7 @@ def _get_entity_proxy(self, ref_dict):
         return UserProxy(self, ref_dict)
 
 
-class UserResultItemResolver(ResultItemResolver):
+class UserResultItemResolver(ServiceResultResolver):
     """Resolver for user result items."""
 
     type_id = "user"
@@ -94,7 +94,6 @@ class UserResultItemResolver(ResultItemResolver):
     def __init__(self):
         """Ctor."""
         super().__init__(
-            UsersServiceConfig.result_item_cls,
-            UsersServiceConfig.service_id,
+            service_id=UsersServiceConfig.service_id,
             type_key=self.type_id,
         )
diff --git a/invenio_users_resources/notifications.py b/invenio_users_resources/notifications.py
index d3b24b9..ab0dceb 100644
--- a/invenio_users_resources/notifications.py
+++ b/invenio_users_resources/notifications.py
@@ -9,8 +9,12 @@
 """User specific resources for notifications."""
 
 
+from invenio_notifications.backends.email import EmailNotificationBackend
 from invenio_notifications.models import Recipient
-from invenio_notifications.services.builders import RecipientBackendGenerator
+from invenio_notifications.services.builders import (
+    RecipientBackendGenerator,
+    RecipientGenerator,
+)
 from invenio_notifications.services.filters import RecipientFilter
 from invenio_records.dictutils import dict_lookup
 
@@ -32,7 +36,7 @@ def __call__(self, notification, recipients):
         return recipients
 
 
-class UserRecipient:
+class UserRecipient(RecipientGenerator):
     """User recipient generator for a notification."""
 
     def __init__(self, key):
@@ -42,8 +46,7 @@ def __init__(self, key):
     def __call__(self, notification, recipients):
         """Update required recipient information and add backend id."""
         user = dict_lookup(notification.context, self.key)
-        if user.get("preferences", {}).get("notifications", {}).get("enabled", True):
-            recipients[user["id"]] = Recipient(data=user)
+        recipients[user["id"]] = Recipient(data=user)
         return recipients
 
 
@@ -52,13 +55,6 @@ class UserEmailBackend(RecipientBackendGenerator):
 
     def __call__(self, notification, recipient, backends):
         """Update required recipient information and add backend id."""
-        backends.append("email")
-        return "email"
-        # NOTE: Not sure about the backend payload yet. Is it needed?
-        # user = recipient.data
-        # rec.backends.append(
-        #     {
-        #         "backend": "email",
-        #         "to": f"{user.profile.full_name} <{user.email}>",
-        #     }
-        # )
+        backend_id = EmailNotificationBackend.id
+        backends.append(backend_id)
+        return backend_id
diff --git a/setup.cfg b/setup.cfg
index aa6604f..280decb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,6 +29,7 @@ zip_safe = False
 install_requires =
     invenio-accounts>=2.2.0,<3.0.0
     invenio-i18n>=2.0.0
+    invenio-notifications>=0.1.0,<1.0.0
     invenio-oauthclient>=2.2.0,<3.0.0
     invenio-records-resources>=4.0.0,<5.0.0