diff --git a/modoboa/admin/app_settings.py b/modoboa/admin/app_settings.py
index ef7db7cc2..f1275c709 100644
--- a/modoboa/admin/app_settings.py
+++ b/modoboa/admin/app_settings.py
@@ -116,6 +116,24 @@ class AdminParametersForm(param_forms.AdminParametersForm):
         )
     )
 
+    default_domain_quota = forms.IntegerField(
+        label=ugettext_lazy("Default domain quota"),
+        initial=0,
+        help_text=ugettext_lazy(
+            "Default quota (in MB) applied to freshly created domains with no "
+            "value specified. A value of 0 means no quota."
+        )
+    )
+
+    default_domain_message_limit = forms.IntegerField(
+        label=ugettext_lazy("Default domain sending limit"),
+        required=False,
+        help_text=ugettext_lazy(
+            "Number of messages freshly created domains will be "
+            "allowed to send per day. Leave empty for no limit."
+        )
+    )
+
     mbsep = SeparatorField(label=ugettext_lazy("Mailboxes"))
 
     handle_mailboxes = YesNoField(
@@ -135,15 +153,6 @@ class AdminParametersForm(param_forms.AdminParametersForm):
         )
     )
 
-    default_domain_quota = forms.IntegerField(
-        label=ugettext_lazy("Default domain quota"),
-        initial=0,
-        help_text=ugettext_lazy(
-            "Default quota (in MB) applied to freshly created domains with no "
-            "value specified. A value of 0 means no quota."
-        )
-    )
-
     default_mailbox_quota = forms.IntegerField(
         label=ugettext_lazy("Default mailbox quota"),
         initial=0,
@@ -153,6 +162,15 @@ class AdminParametersForm(param_forms.AdminParametersForm):
         )
     )
 
+    default_mailbox_message_limit = forms.IntegerField(
+        label=ugettext_lazy("Default mailbox sending limit"),
+        required=False,
+        help_text=ugettext_lazy(
+            "Number of messages freshly created mailboxes will be "
+            "allowed to send per day. Leave empty for no limit."
+        )
+    )
+
     auto_account_removal = YesNoField(
         label=ugettext_lazy("Automatic account removal"),
         initial=False,
diff --git a/modoboa/admin/forms/account.py b/modoboa/admin/forms/account.py
index 840022fd4..ff5e1e0c7 100644
--- a/modoboa/admin/forms/account.py
+++ b/modoboa/admin/forms/account.py
@@ -272,6 +272,7 @@ class AccountFormMail(forms.Form, DynamicForm):
         self.field_widths = {
             "quota": 3
         }
+        params = dict(param_tools.get_global_parameters("admin"))
         if self.mb is not None:
             self.fields["email"].required = True
             qset = self.mb.aliasrecipient_set.filter(alias__internal=False)
@@ -292,12 +293,14 @@ class AccountFormMail(forms.Form, DynamicForm):
             if self.mb.message_limit:
                 self.fields["message_limit"].initial = self.mb.message_limit
             self.fields["create_alias_with_old_address"].initial = (
-                param_tools.get_global_parameter(
-                    "create_alias_on_mbox_rename")
+                params["create_alias_on_mbox_rename"]
             )
         else:
             del self.fields["create_alias_with_old_address"]
             self.fields["quota_act"].initial = True
+            if params["default_mailbox_message_limit"] is not None:
+                self.fields["message_limit"].initial = (
+                    params["default_mailbox_message_limit"])
 
         if len(args) and isinstance(args[0], QueryDict):
             self._load_from_qdict(
diff --git a/modoboa/admin/forms/domain.py b/modoboa/admin/forms/domain.py
index bc8a1a420..ac915608d 100644
--- a/modoboa/admin/forms/domain.py
+++ b/modoboa/admin/forms/domain.py
@@ -70,6 +70,9 @@ class DomainFormGeneral(forms.ModelForm, DynamicForm):
         super(DomainFormGeneral, self).__init__(*args, **kwargs)
         params = dict(param_tools.get_global_parameters("admin"))
         self.fields["quota"].initial = params["default_domain_quota"]
+        if params["default_domain_message_limit"] is not None:
+            self.fields["message_limit"].initial = (
+                params["default_domain_message_limit"])
         self.fields["default_mailbox_quota"].initial = (
             params["default_mailbox_quota"])
         self.fields["type"].choices = constants.DOMAIN_TYPES
diff --git a/modoboa/admin/serializers.py b/modoboa/admin/serializers.py
index fabb34c0a..8a68d184e 100644
--- a/modoboa/admin/serializers.py
+++ b/modoboa/admin/serializers.py
@@ -86,7 +86,14 @@ class DomainSerializer(serializers.ModelSerializer):
 
     def create(self, validated_data):
         """Set permissions."""
+        params = dict(param_tools.get_global_parameters("admin"))
         domain = models.Domain(**validated_data)
+        condition = (
+            params["default_domain_message_limit"] is not None and
+            "message_limit" not in validated_data
+        )
+        if condition:
+            domain.message_limit = params["default_domain_message_limit"]
         creator = self.context["request"].user
         core_signals.can_create_object.send(
             sender=self.__class__, context=creator,
@@ -327,6 +334,10 @@ class WritableAccountSerializer(AccountSerializer):
         mb = admin_models.Mailbox(
             user=account, address=address, domain=domain, **data)
         mb.set_quota(quota, creator.has_perm("admin.add_domain"))
+        default_msg_limit = param_tools.get_global_parameter(
+            "default_mailbox_message_limit")
+        if default_msg_limit is not None:
+            mb.message_limit = default_msg_limit
         mb.save(creator=creator)
         account.email = full_address
         return mb