diff --git a/extensions/amavis_quarantine/__init__.py b/extensions/amavis_quarantine/__init__.py
index 29a71dba1..d19402022 100644
--- a/extensions/amavis_quarantine/__init__.py
+++ b/extensions/amavis_quarantine/__init__.py
@@ -97,7 +97,11 @@ def remove_user_record(mailbox):
     Users.objects.get(email=mailbox.full_address).delete()
 
 @events.observe("GetStaticContent")
-def extra_static_content():
+def extra_static_content(user):
+    if parameters.get_admin("USER_CAN_RELEASE") == "yes" \
+            or user.group == "SimpleUsers":
+        return []
+
     tpl = Template("""<script type="text/javascript">
 function check_nb_requests() {
     $.ajax({
diff --git a/extensions/postfix_autoreply/__init__.py b/extensions/postfix_autoreply/__init__.py
index f6a2e7299..cfc31c14e 100644
--- a/extensions/postfix_autoreply/__init__.py
+++ b/extensions/postfix_autoreply/__init__.py
@@ -115,7 +115,10 @@ def onModifyMailbox(mailbox, oldmailbox):
     alias.save()
 
 @events.observe("GetStaticContent")
-def get_static_content():
+def get_static_content(user):
+    if not user.has_mailbox:
+        return []
+
     return """<script type="text/javascript">
 function arform_cb() {
     $('#id_untildate').datepicker({format: 'yyyy-mm-dd'});
diff --git a/extensions/sievefilters/views.py b/extensions/sievefilters/views.py
index 641a68674..259bc9015 100644
--- a/extensions/sievefilters/views.py
+++ b/extensions/sievefilters/views.py
@@ -35,6 +35,7 @@ def index(request, tplname="sievefilters/index.html"):
     else:
         default_script = "%s/" % active_script
     return _render(request, tplname, {
+            "selection" : "user",
             "active_script" : active_script,
             "default_script" : default_script,
             "scripts" : sorted(scripts),
diff --git a/lib/middleware.py b/lib/middleware.py
index 260b76526..e8daa0ef8 100644
--- a/lib/middleware.py
+++ b/lib/middleware.py
@@ -1,5 +1,4 @@
-# -*- coding: utf-8 -*-
-
+# coding: utf-8
 import re
 from django.http import Http404, HttpResponseRedirect
 from modoboa.admin.models import Extension
@@ -31,8 +30,7 @@ class CommonExceptionCatcher(object):
             return None
 
         if not request.is_ajax():
-            return _render_error(request, errortpl="error_simple",
-                                 user_context=dict(error=str(exception)))
+            return _render_error(request, user_context=dict(error=str(exception)))
         
         return ajax_response(request, status="ko", respmsg=str(exception),
                              norefresh=True)
diff --git a/lib/templatetags/libextras.py b/lib/templatetags/libextras.py
index 7639fcad4..ab00740e5 100644
--- a/lib/templatetags/libextras.py
+++ b/lib/templatetags/libextras.py
@@ -61,11 +61,11 @@ def display_messages(msgs):
 """ % (level, text, timeout)
 
 @register.simple_tag
-def extra_head_content():
+def extra_head_content(user):
     tpl = Template("{% for sc in static_content %}{{ sc|safe }}{% endfor %}")
     return tpl.render(
         Context(
-            dict(static_content=events.raiseQueryEvent("GetStaticContent"))
+            dict(static_content=events.raiseQueryEvent("GetStaticContent", user))
             )
         )
 
diff --git a/templates/common/boxerror.html b/templates/common/boxerror.html
deleted file mode 100644
index ddebe672e..000000000
--- a/templates/common/boxerror.html
+++ /dev/null
@@ -1,4 +0,0 @@
-{% extends "layout_simple.html" %}
-{% block content %}
-<div class="error"><p>{{ error }}</p></div>
-{% endblock %}
diff --git a/templates/common/error.html b/templates/common/error.html
index 11677caf5..0c57125a0 100644
--- a/templates/common/error.html
+++ b/templates/common/error.html
@@ -1,6 +1,5 @@
 {% extends "nlayout.html" %}
 {% load i18n %}
-{% block middletitle %}{% trans "Error" %}{% endblock %}
 {% block content %}
-<div class="error"><p>{{ error }}</p></div>
+<div class="alert alert-error"><strong>{% trans "Error:" %}</strong> {{ error }}</div>
 {% endblock %}
diff --git a/templates/common/error_simple.html b/templates/common/error_simple.html
deleted file mode 100644
index 435b88dc2..000000000
--- a/templates/common/error_simple.html
+++ /dev/null
@@ -1,4 +0,0 @@
-{% extends "nlayout.html" %}
-{% block content %}
-<div class="alert alert-error">{{ error }}</div>
-{% endblock %}
diff --git a/templates/nlayout.html b/templates/nlayout.html
index dbf415adc..402792db1 100644
--- a/templates/nlayout.html
+++ b/templates/nlayout.html
@@ -21,7 +21,7 @@
     <script type="text/javascript">
       set_media_url("{{ MEDIA_URL }}");
     </script>
-    {% extra_head_content %}
+    {% extra_head_content user %}
     {% block html_head %}{% endblock %}
   </head>
 
diff --git a/templates/userprefs/preferences.html b/templates/userprefs/preferences.html
index 35bf1dc9e..fd9f0bf74 100644
--- a/templates/userprefs/preferences.html
+++ b/templates/userprefs/preferences.html
@@ -2,6 +2,16 @@
 {% load i18n uprefs_extras libextras %}
 {% block html_head %}
 <script type="text/javascript">
+function forwardform_cb() {
+    $(".submit").one('click', function(e) {
+        simple_ajax_form_post(e, {
+            formid: "forwardform",
+            error_cb: forwardform_cb,
+            reload_on_success: false
+        });
+    });
+}
+
 $(document).ready(function() {
     $("#update").click(function(evt) {
         evt.preventDefault();
diff --git a/templates/userprefs/setforward.html b/templates/userprefs/setforward.html
deleted file mode 100644
index 8f9fab986..000000000
--- a/templates/userprefs/setforward.html
+++ /dev/null
@@ -1,23 +0,0 @@
-{% extends "layout_simple.html" %}
-{% block html_head %}
-<script src="{{ MEDIA_URL }}js/form.js" type="text/javascript"></script>
-<script type="text/javascript">
-window.addEvent("domready", function() {
-    var form = new Form();
-});
-</script>
-{% endblock %}
-{% block content %}
-{% load i18n %}
-<div class="title"><h1>{% trans "Define your forward" %}</h1></div>
-
-{% if error %}<div class="error">{{ error }}</div>{% endif %}
-{% url userprefs.views.setforward as action_url %}
-<form action="{{ action_url }}" method="post" name="setfwform" id="setfwform">
-  {% include "common/genericform.html" %}
-
-  <div class="lastrow" align="center">
-    <input type="submit" class="button" name="submit" value="{% trans 'Update' %}" />
-  </div>
-</form>
-{% endblock %}
diff --git a/userprefs/templatetags/uprefs_extras.py b/userprefs/templatetags/uprefs_extras.py
index eec2339d1..30f520583 100644
--- a/userprefs/templatetags/uprefs_extras.py
+++ b/userprefs/templatetags/uprefs_extras.py
@@ -16,6 +16,15 @@ def uprefs_menu(selection, user):
          "url" : "",
          "label" : _("Preferences")},
         ]
+    if user.group == 'SimpleUsers':
+        entries += [
+            {"name" : "setforwards",
+             "url" : reverse("modoboa.userprefs.views.setforward"),
+             "modal" : True,
+             "modalcb" : "forwardform_cb",
+             "label" : _("Forward")}
+            ]
+
     entries += events.raiseQueryEvent("UserMenuDisplay", "uprefs_menu", user)
 
     return render_to_string('common/menu.html', {
@@ -52,16 +61,6 @@ def user_menu(user, selection):
             "label" : _("Logout"),
             "img" : "icon-off"}]
 
-    # if user.group == 'SimpleUsers':
-    #     entries[0]["menu"] += [{
-    #         "name" : "setforwards",
-    #         "url" : reverse("modoboa.userprefs.views.setforward"),
-    #         "img" : static_url("pics/alias.png"),
-    #         "label" : _("Forward"),
-    #         "class" : "boxed",
-    #         "rel" : "{handler:'iframe',size:{x:360,y:350},closeBtn:true}"
-    #         }]
-
     return render_to_string("common/menulist.html",
                             {"selection" : selection, "entries" : entries, "user" : user})
 
diff --git a/userprefs/views.py b/userprefs/views.py
index 004aab8d2..3c8daebd6 100644
--- a/userprefs/views.py
+++ b/userprefs/views.py
@@ -23,7 +23,7 @@ def changepassword(request, tplname="common/generic_modal_form.html"):
     res = events.raiseQueryEvent("PasswordChange", request.user)
     if True in res:
         ctx = dict(error=_("Password change is disabled for this user"))
-        return _render_error(request, errortpl="error_simple", user_context=ctx)
+        return _render_error(request, user_context=ctx)
 
     ctx = dict(
         title=_("Change password"),
@@ -55,8 +55,15 @@ def changepassword(request, tplname="common/generic_modal_form.html"):
 
 @login_required
 @user_passes_test(lambda u: u.belongs_to_group('SimpleUsers'))
-def setforward(request, tplname="userprefs/setforward.html"):
-    mb = Mailbox.objects.get(user=request.user.id)
+def setforward(request, tplname="common/generic_modal_form.html"):
+    mb = request.user.mailbox_set.all()[0]
+    ctx = dict(
+        title=_("Define a forward"),
+        formid="forwardform",
+        action=reverse(setforward),
+        action_label=_("Update"),
+        action_classes="submit",
+        )
     try:
         al = Alias.objects.get(address=mb.address, 
                                domain__name=mb.domain.name)
@@ -80,9 +87,11 @@ def setforward(request, tplname="userprefs/setforward.html"):
                 return ajax_response(request, respmsg=_("Forward updated"))
             except BadDestination, e:
                 error = str(e)
-        return ajax_response(request, status="ko", template=tplname,
-                             form=form, error=error)
+        ctx.update(form=form, error=error)
+        return ajax_response(request, status="ko", template=tplname, **ctx)
+
     form = ForwardForm()
+    print al
     if al is not None:
         form.fields["dest"].initial = al.extmboxes
         try:
@@ -91,9 +100,8 @@ def setforward(request, tplname="userprefs/setforward.html"):
             pass
         else:
             form.fields["keepcopies"].initial = True
-    return _render(request, tplname, {
-            "form" : form
-            })
+    ctx.update(form=form)
+    return _render(request, tplname, ctx)
 
 @login_required
 def preferences(request):