diff --git a/modoboa/admin/api/v2/viewsets.py b/modoboa/admin/api/v2/viewsets.py
index 4b717dda4..569733c57 100644
--- a/modoboa/admin/api/v2/viewsets.py
+++ b/modoboa/admin/api/v2/viewsets.py
@@ -9,13 +9,14 @@ from drf_spectacular.utils import extend_schema, extend_schema_view
 from rest_framework import (
     filters, mixins, parsers, pagination, permissions, response, status, viewsets
 )
-from rest_framework.decorators import action
+from rest_framework.decorators import action, throttle_classes
 from rest_framework.exceptions import PermissionDenied
 
 from modoboa.admin.api.v1 import viewsets as v1_viewsets
 from modoboa.core import models as core_models
 from modoboa.lib import renderers as lib_renderers
 from modoboa.lib import viewsets as lib_viewsets
+from modoboa.lib.throttle import UserDosThrottle
 
 from ... import lib
 from ... import models
@@ -51,6 +52,7 @@ class DomainViewSet(lib_viewsets.RevisionModelMixin,
     permission_classes = (
         permissions.IsAuthenticated, permissions.DjangoModelPermissions,
     )
+    throttle_classes = [UserDosThrottle]
 
     def get_queryset(self):
         """Filter queryset based on current user."""
@@ -159,6 +161,7 @@ class AccountViewSet(v1_viewsets.AccountViewSet):
 
     filter_backends = (filters.SearchFilter, dj_filters.DjangoFilterBackend)
     filterset_class = AccountFilterSet
+    throttle_classes = [UserDosThrottle]
 
     def get_serializer_class(self):
         if self.action in ["create", "validate", "update", "partial_update"]:
@@ -213,6 +216,7 @@ class IdentityViewSet(viewsets.ViewSet):
 
     permission_classes = (permissions.IsAuthenticated, )
     serializer_class = None
+    throttle_classes = [UserDosThrottle]
 
     def list(self, request, **kwargs):
         """Return all identities."""
@@ -252,6 +256,7 @@ class AliasViewSet(v1_viewsets.AliasViewSet):
     """Viewset for Alias."""
 
     serializer_class = serializers.AliasSerializer
+    throttle_classes = [UserDosThrottle]
 
     @action(methods=["post"], detail=False)
     def validate(self, request, **kwargs):
@@ -273,6 +278,8 @@ class AliasViewSet(v1_viewsets.AliasViewSet):
 class UserAccountViewSet(viewsets.ViewSet):
     """Viewset for current user operations."""
 
+    throttle_classes = [UserDosThrottle]
+
     @action(methods=["get", "post"], detail=False)
     def forward(self, request, **kwargs):
         """Get or define user forward."""
@@ -334,6 +341,7 @@ class AlarmViewSet(viewsets.ReadOnlyModelViewSet):
     )
     search_fields = ["domain__name", "title"]
     serializer_class = serializers.AlarmSerializer
+    throttle_classes = [UserDosThrottle]
 
     def get_queryset(self):
         return models.Alarm.objects.select_related("domain").filter(
diff --git a/modoboa/core/api/v2/views.py b/modoboa/core/api/v2/views.py
index 5e3a62464..cbc186869 100644
--- a/modoboa/core/api/v2/views.py
+++ b/modoboa/core/api/v2/views.py
@@ -14,6 +14,7 @@ from rest_framework_simplejwt import views as jwt_views
 from rest_framework_simplejwt.exceptions import InvalidToken, TokenError
 from rest_framework.views import APIView
 
+from modoboa.lib.throttle import UserDosThrottle
 from modoboa.core.password_hashers import get_password_hasher
 from modoboa.core.utils import check_for_updates
 from modoboa.parameters import tools as param_tools
@@ -28,7 +29,7 @@ logger = logging.getLogger("modoboa.auth")
 class TokenObtainPairView(jwt_views.TokenObtainPairView):
     """We overwrite this view to deal with password scheme update."""
 
-    throttle_classes = ["AnonRateThrottle"]
+    throttle_scope = "login"
 
     def post(self, request, *args, **kwargs):
         serializer = self.get_serializer(data=request.data)
@@ -86,7 +87,7 @@ class EmailPasswordResetView(APIView):
     """
     An Api View which provides a method to request a password reset token based on an e-mail address.
     """
-    
+
     throttle_scope = 'password_recovery_request'
 
     def post(self, request, *args, **kwargs):
@@ -173,6 +174,8 @@ class PasswordResetConfirmView(APIView):
 class ComponentsInformationAPIView(APIView):
     """Retrieve information about installed components."""
 
+    throttle_classes = [UserDosThrottle]
+
     @extend_schema(responses=serializers.ModoboaComponentSerializer(many=True))
     def get(self, request, *args, **kwargs):
         status, extensions = check_for_updates()
diff --git a/modoboa/core/commands/templates/settings.py.tpl b/modoboa/core/commands/templates/settings.py.tpl
index 9f9ab4b9c..8676049fb 100644
--- a/modoboa/core/commands/templates/settings.py.tpl
+++ b/modoboa/core/commands/templates/settings.py.tpl
@@ -194,12 +194,16 @@ MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
 
 REST_FRAMEWORK = {
     'DEFAULT_THROTTLE_CLASSES': [
-        'rest_framework.throttling.AnonRateThrottle',
-        'rest_framework.throttling.ScopedRateThrottle'
+    'rest_framework.throttling.AnonRateThrottle',
+    'rest_framework.throttling.ScopedRateThrottle',
+    'modoboa.lib.throttle.UserDosThrottle',
+    'modoboa.lib.throttle.AnonDosThrottle'
     ],
     'DEFAULT_THROTTLE_RATES': {
         'anon': '100/hour',
-        'login': '5/hour',
+        'login': '3/minute',
+        'ddos': '100/minute',
+        'anon_ddos': '10/minute',
         'password_recovery_request': '6/hour',
         'password_recovery_totp_check': '20/hour',
         'password_recovery_apply': '20/hour'
diff --git a/modoboa/dnstools/api/v2/viewsets.py b/modoboa/dnstools/api/v2/viewsets.py
index 4776e449c..1faad46fa 100644
--- a/modoboa/dnstools/api/v2/viewsets.py
+++ b/modoboa/dnstools/api/v2/viewsets.py
@@ -4,6 +4,7 @@ from rest_framework import permissions, response, viewsets
 from rest_framework.decorators import action
 
 from modoboa.admin import models as admin_models
+from modoboa.lib.throttle import UserDosThrottle
 
 from . import serializers
 
@@ -12,6 +13,7 @@ class DNSViewSet(viewsets.GenericViewSet):
     """A viewset to provide extra routes related to DNS information."""
 
     permission_classes = (permissions.IsAuthenticated, )
+    throttle_classes = [UserDosThrottle]
 
     def get_queryset(self):
         """Filter queryset based on current user."""
diff --git a/modoboa/lib/throttle.py b/modoboa/lib/throttle.py
new file mode 100644
index 000000000..b5142219c
--- /dev/null
+++ b/modoboa/lib/throttle.py
@@ -0,0 +1,23 @@
+from rest_framework.throttling import UserRateThrottle, AnonRateThrottle
+
+class UserDosThrottle(UserRateThrottle):
+    """Custom Throttle class for rest_framework. The throttling is applied on a per view basis for authentificated users."""
+
+    scope = "ddos"
+
+    def get_cache_key(self, request, view):
+        return "throttle_{viewid}_{indent}".format(
+            viewid=id(view),
+            indent=self.get_indent(request)
+        )
+
+class AnonDosThrottle(AnonRateThrottle):
+    """Custom Throttle class for rest_framework. The throttling is applied on a per view basis for visitors."""
+
+    scope = "anon_ddos"
+
+    def get_cache_key(self, request, view):
+        return "throttle_{viewid}_{indent}".format(
+            viewid=id(view),
+            indent=self.get_indent(request)
+        )
diff --git a/modoboa/maillog/api/v2/viewsets.py b/modoboa/maillog/api/v2/viewsets.py
index b5bb1be8f..79ec23203 100644
--- a/modoboa/maillog/api/v2/viewsets.py
+++ b/modoboa/maillog/api/v2/viewsets.py
@@ -9,6 +9,7 @@ from rest_framework import filters, permissions, response, viewsets
 
 from modoboa.admin import models as admin_models
 from modoboa.lib import pagination
+from modoboa.lib.throttle import UserDosThrottle
 
 from ... import models
 from ... import signals
@@ -19,6 +20,7 @@ class StatisticsViewSet(viewsets.ViewSet):
     """A viewset to provide extra route related to mail statistics."""
 
     permission_classes = (permissions.IsAuthenticated, )
+    throttle_classes = [UserDosThrottle]
 
     @extend_schema(
         parameters=[serializers.StatisticsInputSerializer],
@@ -61,6 +63,7 @@ class MaillogViewSet(viewsets.ReadOnlyModelViewSet):
     permissions = (permissions.IsAuthenticated, )
     search_fields = ["queue_id", "sender", "rcpt", "original_rcpt", "status"]
     serializer_class = serializers.MaillogSerializer
+    throttle_classes = [UserDosThrottle]
 
     def get_queryset(self):
         """Filter queryset based on current user."""
diff --git a/modoboa/parameters/api/v2/viewsets.py b/modoboa/parameters/api/v2/viewsets.py
index a6f802f6a..a08dbd478 100644
--- a/modoboa/parameters/api/v2/viewsets.py
+++ b/modoboa/parameters/api/v2/viewsets.py
@@ -4,6 +4,8 @@ from drf_spectacular.utils import extend_schema, OpenApiParameter
 from rest_framework import response, viewsets
 from rest_framework.decorators import action
 
+from modoboa.lib.throttle import UserDosThrottle
+
 from . import serializers
 from ... import tools
 
@@ -13,6 +15,7 @@ class ParametersViewSet(viewsets.ViewSet):
 
     lookup_value_regex = r"\w+"
     serializer_class = None
+    throttle_classes = [UserDosThrottle]
 
     @extend_schema(responses=serializers.ApplicationSerializer(many=True))
     @action(methods=["get"], detail=False)
diff --git a/modoboa/transport/api/v2/viewsets.py b/modoboa/transport/api/v2/viewsets.py
index 28d2b005f..5ba820454 100644
--- a/modoboa/transport/api/v2/viewsets.py
+++ b/modoboa/transport/api/v2/viewsets.py
@@ -3,6 +3,8 @@
 from drf_spectacular.utils import extend_schema
 from rest_framework import permissions, response, viewsets
 
+from modoboa.lib.throttle import UserDosThrottle
+
 from . import serializers
 from ... import backends
 
@@ -11,6 +13,7 @@ class TransportViewSet(viewsets.ViewSet):
     """Viewset for Transport."""
 
     permissions = (permissions.IsAuthenticated, )
+    throttle_classes = [UserDosThrottle]
 
     @extend_schema(
         responses={200: serializers.TransportBackendSerializer}
diff --git a/test_project/test_project/settings.py b/test_project/test_project/settings.py
index b0b09770b..76f67e156 100644
--- a/test_project/test_project/settings.py
+++ b/test_project/test_project/settings.py
@@ -188,11 +188,15 @@ MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
 REST_FRAMEWORK = {
     'DEFAULT_THROTTLE_CLASSES': [
         'rest_framework.throttling.AnonRateThrottle',
-        'rest_framework.throttling.ScopedRateThrottle'
+        'rest_framework.throttling.ScopedRateThrottle',
+        'modoboa.lib.throttle.UserDosThrottle',
+        'modoboa.lib.throttle.AnonDosThrottle'
     ],
     'DEFAULT_THROTTLE_RATES': {
         'anon': '100/hour',
-        'login': '5/hour',
+        'login': '3/minute',
+        'ddos': '100/minute',
+        'anon_ddos': '10/minute',
         'password_recovery_request': '6/hour',
         'password_recovery_totp_check': '20/hour',
         'password_recovery_apply': '20/hour'