diff --git a/modoboa/admin/forms.py b/modoboa/admin/forms.py
index 452764949..2d26e8c90 100644
--- a/modoboa/admin/forms.py
+++ b/modoboa/admin/forms.py
@@ -79,6 +79,9 @@ class DomainFormGeneral(forms.ModelForm, DynamicForm):
             hm = parameters.get_admin("HANDLE_MAILBOXES", raise_error=False)
             if hm == "yes":
                 if self.oldname is not None and d.name != self.oldname:
+                    for q in Quota.objects.filter(username__contains="@%s" % self.oldname):
+                        q.username = q.username.replace('@%s' % self.oldname, '@%s' % d.name)
+                        q.save()
                     old_mail_homes = dict((mb.id, mb.mail_home) for mb in d.mailbox_set.all())
             d.save()
             if old_mail_homes is not None:
@@ -571,6 +574,9 @@ class AccountFormMail(forms.Form, DynamicForm):
                 old_mail_home = self.mb.mail_home
                 self.mb.domain = domain
                 self.mb.address = locpart
+                q = Quota.objects.get(username=self.mb.full_address)
+                q.username = self.mb.full_address
+                q.save()
             self.mb.set_quota(self.cleaned_data["quota"], user.has_perm("admin.add_domain"))
             self.mb.save()
             if old_mail_home is not None:
diff --git a/modoboa/admin/migrations/0023_auto__add_quota.py b/modoboa/admin/migrations/0023_auto__add_quota.py
new file mode 100644
index 000000000..51de52372
--- /dev/null
+++ b/modoboa/admin/migrations/0023_auto__add_quota.py
@@ -0,0 +1,125 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding model 'Quota'
+        db.create_table('admin_quota', (
+            ('username', self.gf('django.db.models.fields.EmailField')(max_length=75, primary_key=True)),
+            ('bytes', self.gf('django.db.models.fields.IntegerField')(default=0)),
+            ('messages', self.gf('django.db.models.fields.IntegerField')(default=0)),
+        ))
+        db.send_create_signal('admin', ['Quota'])
+
+
+    def backwards(self, orm):
+        # Deleting model 'Quota'
+        db.delete_table('admin_quota')
+
+
+    models = {
+        'admin.alias': {
+            'Meta': {'ordering': "['domain__name', 'address']", 'unique_together': "(('address', 'domain'),)", 'object_name': 'Alias'},
+            'address': ('django.db.models.fields.CharField', [], {'max_length': '254'}),
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'domain': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.Domain']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'extmboxes': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'mboxes': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['admin.Mailbox']", 'symmetrical': 'False'})
+        },
+        'admin.domain': {
+            'Meta': {'ordering': "['name']", 'object_name': 'Domain'},
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
+            'quota': ('django.db.models.fields.IntegerField', [], {})
+        },
+        'admin.domainalias': {
+            'Meta': {'object_name': 'DomainAlias'},
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
+            'target': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.Domain']"})
+        },
+        'admin.extension': {
+            'Meta': {'object_name': 'Extension'},
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '150'})
+        },
+        'admin.mailbox': {
+            'Meta': {'object_name': 'Mailbox'},
+            'address': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'domain': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.Domain']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'quota': ('django.db.models.fields.IntegerField', [], {}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        },
+        'admin.objectaccess': {
+            'Meta': {'unique_together': "(('user', 'content_type', 'object_id'),)", 'object_name': 'ObjectAccess'},
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_owner': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'object_id': ('django.db.models.fields.PositiveIntegerField', [], {}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        },
+        'admin.objectdates': {
+            'Meta': {'object_name': 'ObjectDates'},
+            'creation': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_modification': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
+        },
+        'admin.quota': {
+            'Meta': {'object_name': 'Quota'},
+            'bytes': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'messages': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'username': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'primary_key': 'True'})
+        },
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        }
+    }
+
+    complete_apps = ['admin']
\ No newline at end of file
diff --git a/modoboa/admin/migrations/0024_create_quotas.py b/modoboa/admin/migrations/0024_create_quotas.py
new file mode 100644
index 000000000..874b776f4
--- /dev/null
+++ b/modoboa/admin/migrations/0024_create_quotas.py
@@ -0,0 +1,119 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import DataMigration
+from django.db import models
+
+class Migration(DataMigration):
+
+    def forwards(self, orm):
+        "Write your forwards methods here."
+        for mb in orm["admin.Mailbox"].objects.all():
+            orm["admin.Quota"].objects.create(username="%s@%s" % (mb.address, mb.domain.name))
+
+    def backwards(self, orm):
+        "Write your backwards methods here."
+        orm["admin.Quota"].objects.all().delete()
+
+    models = {
+        'admin.alias': {
+            'Meta': {'ordering': "['domain__name', 'address']", 'unique_together': "(('address', 'domain'),)", 'object_name': 'Alias'},
+            'address': ('django.db.models.fields.CharField', [], {'max_length': '254'}),
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'domain': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.Domain']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'extmboxes': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'mboxes': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['admin.Mailbox']", 'symmetrical': 'False'})
+        },
+        'admin.domain': {
+            'Meta': {'ordering': "['name']", 'object_name': 'Domain'},
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
+            'quota': ('django.db.models.fields.IntegerField', [], {})
+        },
+        'admin.domainalias': {
+            'Meta': {'object_name': 'DomainAlias'},
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
+            'target': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.Domain']"})
+        },
+        'admin.extension': {
+            'Meta': {'object_name': 'Extension'},
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '150'})
+        },
+        'admin.mailbox': {
+            'Meta': {'object_name': 'Mailbox'},
+            'address': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'dates': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.ObjectDates']"}),
+            'domain': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['admin.Domain']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'quota': ('django.db.models.fields.IntegerField', [], {}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        },
+        'admin.objectaccess': {
+            'Meta': {'unique_together': "(('user', 'content_type', 'object_id'),)", 'object_name': 'ObjectAccess'},
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_owner': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'object_id': ('django.db.models.fields.PositiveIntegerField', [], {}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        },
+        'admin.objectdates': {
+            'Meta': {'object_name': 'ObjectDates'},
+            'creation': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_modification': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
+        },
+        'admin.quota': {
+            'Meta': {'object_name': 'Quota'},
+            'bytes': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'messages': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'username': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'primary_key': 'True'})
+        },
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        }
+    }
+
+    complete_apps = ['admin']
+    symmetrical = True
diff --git a/modoboa/admin/models.py b/modoboa/admin/models.py
index caa8075a6..4659e3a46 100644
--- a/modoboa/admin/models.py
+++ b/modoboa/admin/models.py
@@ -723,6 +723,10 @@ class Mailbox(DatesAware):
         else:
             self.quota = value
 
+    def get_cur_quota(self):
+        q = Quota.objects.get(username=self.full_address)
+        return q.bytes / (self.quota * 1048576) * 100
+
     def save_from_user(self, localpart, domain, user, quota=None, owner=None):
         """Simple save method called for automatic creations
 
@@ -736,7 +740,11 @@ class Mailbox(DatesAware):
         self.set_quota(quota, True if (owner and owner.has_perm("admin.add_domain")) else False)
         super(Mailbox, self).save()
 
+        Quota.objects.create(username=self.full_address)
+
     def delete(self, keepdir=False):
+        q = Quota.objects.get(username=self.full_address)
+        q.delete()
         super(Mailbox, self).delete()
         if not keepdir:
             self.delete_dir()
@@ -761,6 +769,13 @@ def mailbox_deleted_handler(sender, **kwargs):
         if alias.mboxes.count() == 0:
             alias.delete()
    
+
+class Quota(models.Model):
+    username = models.EmailField(primary_key=True)
+    bytes = models.IntegerField(default=0)
+    messages = models.IntegerField(default=0)
+
+
 class Alias(DatesAware):
     address = models.CharField(
         ugettext_lazy('address'), max_length=254,
diff --git a/modoboa/admin/static/admin/css/admin.css b/modoboa/admin/static/admin/css/admin.css
index 7a48f9cda..a28919dd9 100644
--- a/modoboa/admin/static/admin/css/admin.css
+++ b/modoboa/admin/static/admin/css/admin.css
@@ -18,6 +18,10 @@ table td[name="actions"] {
     text-align: right;
 }
 
+table .progress {
+    margin-bottom: 0 !important;
+}
+
 .search {
     width: 85%;
     -webkit-border-radius:14px;-moz-border-radius:14px;border-radius:14px;
diff --git a/modoboa/admin/static/admin/js/admin.js b/modoboa/admin/static/admin/js/admin.js
index 859de7edf..3db113d36 100644
--- a/modoboa/admin/static/admin/js/admin.js
+++ b/modoboa/admin/static/admin/js/admin.js
@@ -185,6 +185,17 @@ Identities.prototype = {
         }
     },
 
+    listen: function() {
+        Admin.prototype.listen.call(this);
+        $(document).on("click", "a.ajaxlink", $.proxy(this.page_loader, this));
+    },
+
+    page_loader: function(e) {
+        var $link = get_target(e);
+        e.preventDefault();
+        this.navobj.baseurl($link.attr("href")).update();
+    },
+
     list_cb: function(data) {
         Admin.prototype.list_cb.call(this, data);
         var deloptions = {};
diff --git a/modoboa/admin/templates/admin/quotas.html b/modoboa/admin/templates/admin/quotas.html
new file mode 100644
index 000000000..77f8170b2
--- /dev/null
+++ b/modoboa/admin/templates/admin/quotas.html
@@ -0,0 +1,19 @@
+{% load i18n libextras %}
+<table class="table">
+  <thead>
+    <tr>
+      <th>{% trans "Address" %}</th><th>{% trans "Current quota" %}</th><th id="actions">{% trans "Actions" %}</th>
+    </tr>
+  </thead>
+  <tbody>
+    {% for mbox in mboxes %}<tr>
+      <td>{{ mbox.full_address }}</td>
+      <td name="quota">
+        <div id="quotabar" class="progress {% progress_color mbox.get_cur_quota %}">
+          <div class="bar" style="width: {{ mbox.get_cur_quota }}%"></div>
+        </div>
+      </td>
+      <td name="actions"></td>
+    </tr>{% endfor %}
+  </tbody>
+</table>
diff --git a/modoboa/admin/templatetags/admin_extras.py b/modoboa/admin/templatetags/admin_extras.py
index 625b2c791..752eb84e4 100644
--- a/modoboa/admin/templatetags/admin_extras.py
+++ b/modoboa/admin/templatetags/admin_extras.py
@@ -102,6 +102,16 @@ def domains_menu(selection, user):
 @register.simple_tag
 def identities_menu(user):
     entries = [
+        {"name": "identities",
+         "label": _("List identities"),
+         "img": "icon-user",
+         "class": "ajaxlink",
+         "url": "list/"},
+        {"name": "quotas",
+         "label": _("List quotas"),
+         "img": "icon-hdd",
+         "class": "ajaxlink",
+         "url": "quotas/"},
         {"name" : "newaccount",
          "label" : _("Add account"),
          "img" : "icon-plus",
diff --git a/modoboa/admin/urls.py b/modoboa/admin/urls.py
index 5b2e6ce70..50f6582a2 100644
--- a/modoboa/admin/urls.py
+++ b/modoboa/admin/urls.py
@@ -23,6 +23,7 @@ urlpatterns = patterns(
 
     (r'^identities/$', 'identities'),
     (r'^identities/list/$', '_identities'),
+    (r'^identities/quotas/$', 'list_quotas'),
     (r'^identities/import/$', 'import_identities'),
     (r'^identities/export/$', 'export_identities'),
 
diff --git a/modoboa/admin/views.py b/modoboa/admin/views.py
index 84f9ac32e..99a808b88 100644
--- a/modoboa/admin/views.py
+++ b/modoboa/admin/views.py
@@ -340,6 +340,19 @@ def mboxes_list(request):
     mboxes = request.user.get_mailboxes()
     return ajax_simple_response([mb.full_address for mb in mboxes])
 
+
+@login_required
+@permission_required("admin.add_mailbox")
+def list_quotas(request, tplname="admin/quotas.html"):
+    mboxes = request.user.get_mailboxes()
+    return ajax_simple_response({
+        "status": "ok",
+        "table": _render_to_string(request, tplname, {
+            "mboxes": mboxes
+        })
+    })
+
+
 @login_required
 @permission_required("auth.add_user")
 @transaction.commit_on_success