diff --git a/users/serializers.py b/users/serializers.py
new file mode 100644
index 00000000..8f4c050d
--- /dev/null
+++ b/users/serializers.py
@@ -0,0 +1,31 @@
+# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
+# se veut agnostique au réseau considéré, de manière à être installable en
+# quelques clics.
+#
+# Copyright © 2017  Gabriel Détraz
+# Copyright © 2017  Goulven Kermarec
+# Copyright © 2017  Augustin Lemesle
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+#Maël Kervella
+
+from rest_framework import serializers
+from users.models import User
+
+class MailSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = ('email',)
diff --git a/users/views.py b/users/views.py
index 3a3a9911..f766f4df 100644
--- a/users/views.py
+++ b/users/views.py
@@ -46,7 +46,8 @@ from rest_framework.renderers import JSONRenderer
 
 from reversion.models import Version
 from reversion import revisions as reversion
-from users.models import User, Right, Ban, Whitelist, School, ListRight, Request, ServiceUser
+from users.serializers import MailSerializer
+from users.models import User, Right, Ban, Whitelist, School, ListRight, Request, ServiceUser, all_has_access
 from users.forms import DelRightForm, BanForm, WhitelistForm, DelSchoolForm, DelListRightForm, NewListRightForm
 from users.forms import EditInfoForm, InfoForm, BaseInfoForm, StateForm, RightForm, SchoolForm, EditServiceUserForm, ServiceUserForm, ListRightForm
 from cotisations.models import Facture
@@ -707,9 +708,7 @@ class JSONResponse(HttpResponse):
 @login_required
 @permission_required('serveur')
 def mailing(request):
-    mails = set()
-    for u in User.objects.all() :
-        if u.has_access():
-            mails.add( u.email )
-    return JSONResponse(mails)
+    mails = all_has_access().values('email').distinct()
+    seria = MailSerializer(mails, many=True)
+    return JSONResponse(seria.data)