diff --git a/modoboa/limits/constants.py b/modoboa/limits/constants.py
index 7d076a2c8..947adbe62 100644
--- a/modoboa/limits/constants.py
+++ b/modoboa/limits/constants.py
@@ -9,7 +9,7 @@ DEFAULT_LIMITS = collections.OrderedDict((
     ("domains", {
         "content_type": "admin.domain", "label": _("Domains"),
         "help": _("Maximum number of domains this user can create"),
-        "required_role": "Reselles"}),
+        "required_role": "Resellers"}),
     ("domain_aliases", {
         "content_type": "admin.domainalias", "label": _("Domain aliases"),
         "help": _("Maximum number of domain aliases this user can create"),
diff --git a/modoboa/limits/forms.py b/modoboa/limits/forms.py
index 22cc07390..8d3285cf2 100644
--- a/modoboa/limits/forms.py
+++ b/modoboa/limits/forms.py
@@ -35,29 +35,22 @@ class ResourcePoolForm(forms.Form):
         if hasattr(self, "account"):
             self.load_from_user(self.account)
 
-    def check_limit_value(self, lname):
-        fieldname = "{}_limit".format(lname)
-        if self.cleaned_data[fieldname] < -1:
-            raise forms.ValidationError(_("Invalid limit"))
-        return self.cleaned_data[fieldname]
-
     def clean(self):
+        """Ensure limit values are correct."""
         cleaned_data = super(ResourcePoolForm, self).clean()
+        if self.errors:
+            return cleaned_data
         for lname in self.fields.keys():
-            if lname not in self._errors and cleaned_data[lname] < -1:
+            if cleaned_data[lname] < -1:
                 self.add_error(lname, _("Invalid limit"))
         return cleaned_data
 
     def load_from_user(self, user):
+        """Load limit values from given user."""
         for fieldname in self.fields.keys():
             lname = fieldname.replace("_limit", "")
             self.fields[fieldname].initial = (
                 user.objectlimit_set.get(name=lname).max_value)
-            # The following lines will become useless in a near
-            # future.
-            if self.fields[fieldname].initial == -2:
-                self.fields[fieldname].initial = parameters.get_admin(
-                    "DEFLT_{}_LIMIT".format(lname.upper()))
 
     def allocate_from_user(self, limit, user):
         """Allocate resource using an existing user.
@@ -68,8 +61,6 @@ class ResourcePoolForm(forms.Form):
         pool.
         """
         ol = user.objectlimit_set.get(name=limit.name)
-        if ol.max_value == -2:
-            raise BadLimitValue(_("Your resources are not initialized yet"))
         fieldname = "{}_limit".format(limit.name)
         newvalue = self.cleaned_data[fieldname]
         if newvalue == -1 and ol.max_value != -1:
diff --git a/modoboa/limits/models.py b/modoboa/limits/models.py
index 7f3cf4412..c97deadff 100644
--- a/modoboa/limits/models.py
+++ b/modoboa/limits/models.py
@@ -4,12 +4,15 @@
 
 from django.conf import settings
 from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
+from django.utils.translation import ugettext as _
 
 from modoboa.core import models as core_models
 
 from . import utils
 
 
+@python_2_unicode_compatible
 class ObjectLimit(models.Model):
     """Per-user limits on object creation."""
 
@@ -49,7 +52,7 @@ class ObjectLimit(models.Model):
         if self.max_value < 0:
             return -1
         if self.max_value == 0:
-            return 0
+            return 100
         return int(float(self.current_value) / self.max_value * 100)
 
     @property
@@ -60,3 +63,11 @@ class ObjectLimit(models.Model):
     def is_exceeded(self, count=1):
         """Check if limit will be reached if we add count object(s)."""
         return self.current_value + 1 > self.max_value
+
+    def __str__(self):
+        """Display current usage."""
+        if self.max_value == -2:
+            return _("undefined")
+        if self.max_value == -1:
+            return _("unlimited")
+        return "{}%".format(self.usage)
diff --git a/modoboa/limits/tests.py b/modoboa/limits/tests.py
index 253c48880..40af6cc93 100644
--- a/modoboa/limits/tests.py
+++ b/modoboa/limits/tests.py
@@ -188,6 +188,9 @@ class ResellerTestCase(ResourceTestCase):
         self.client.login(username='reseller', password='toto')
 
     def test_domains_limit(self):
+        response = self.client.get(reverse("admin:domain_list"))
+        self.assertContains(response, "Domains (0%)")
+        self.assertContains(response, "Domain aliases (0%)")
         self._create_domain('domain1.tld')
         self._check_limit('domains', 1, 2)
         self._create_domain('domain2.tld')
@@ -216,6 +219,11 @@ class ResellerTestCase(ResourceTestCase):
         self._check_limit('domain_aliases', 1, 2)
 
     def test_domain_admins_limit(self):
+        response = self.client.get(reverse("admin:identity_list"))
+        self.assertContains(response, "Domain admins (0%)")
+        self.assertContains(response, "Mailboxes (0%)")
+        self.assertContains(response, "Mailbox aliases (0%)")
+
         self._create_domain('domain.tld')
         self._create_account('admin1@domain.tld', role='DomainAdmins')
         self._check_limit('domain_admins', 1, 2)
diff --git a/modoboa/limits/urls.py b/modoboa/limits/urls.py
deleted file mode 100644
index 7bcb7fec0..000000000
--- a/modoboa/limits/urls.py
+++ /dev/null
@@ -1,6 +0,0 @@
-from django.conf.urls import patterns
-
-urlpatterns = patterns(
-    'modoboa.limits.views',
-
-)