diff --git a/docs/changelog.rst b/docs/changelog.rst
index 8307437..ff8024b 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+* :release:`0.3.0 <2014-12-27>`
+* :feature:`-` call create/delete mailbox tasks when saving/deleting mailboxes
+* :support:`-` use celery routers from gvacommon
+* :feature:`-` automatic creation of mailbox names from user names
+* :bug:`- major` fix broken mailbox admin
+
 * :release:`0.2.3 <2014-12-26>`
 * :bug:`-` remove attribute readonly_fields from
   :py:class:`osusers.admin.UserAdmin` to make saving of additional groups work
diff --git a/docs/conf.py b/docs/conf.py
index 3f2bc82..ffdf565 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -55,9 +55,9 @@ copyright = u'2014, Jan Dittberner'
 # built documents.
 #
 # The short X.Y version.
-version = '0.2.3'
+version = '0.3'
 # The full version, including alpha/beta/rc tags.
-release = '0.2.3'
+release = '0.3.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/gnuviechadmin/gnuviechadmin/settings/base.py b/gnuviechadmin/gnuviechadmin/settings/base.py
index 5442654..f05a821 100644
--- a/gnuviechadmin/gnuviechadmin/settings/base.py
+++ b/gnuviechadmin/gnuviechadmin/settings/base.py
@@ -279,8 +279,8 @@ CELERY_RESULT_BACKEND = 'amqp'
 CELERY_RESULT_PERSISTENT = True
 CELERY_TASK_RESULT_EXPIRES = None
 CELERY_ROUTES = (
-    'osusers.tasks.LdapRouter',
-    'osusers.tasks.FileRouter',
+    'gvacommon.celeryrouters.LdapRouter',
+    'gvacommon.celeryrouters.FileRouter',
 )
 CELERY_ACCEPT_CONTENT = ['pickle', 'yaml', 'json']
 CELERY_TASK_SERIALIZER = 'json'
diff --git a/gnuviechadmin/gvacommon/.gitignore b/gnuviechadmin/gvacommon/.gitignore
new file mode 100644
index 0000000..3bb2efd
--- /dev/null
+++ b/gnuviechadmin/gvacommon/.gitignore
@@ -0,0 +1,2 @@
+.*.swp
+*.pyc
diff --git a/gnuviechadmin/gvacommon/__init__.py b/gnuviechadmin/gvacommon/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/gnuviechadmin/gvacommon/celeryrouters.py b/gnuviechadmin/gvacommon/celeryrouters.py
new file mode 100644
index 0000000..e468813
--- /dev/null
+++ b/gnuviechadmin/gvacommon/celeryrouters.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+
+class LdapRouter(object):
+
+    def route_for_task(self, task, args=None, kwargs=None):
+        if 'ldap' in task:
+            return {'exchange': 'ldap',
+                    'exchange_type': 'direct',
+                    'queue': 'ldap'}
+        return None
+
+
+class FileRouter(object):
+
+    def route_for_task(self, task, args=None, kwargs=None):
+        if 'file' in task:
+            return {'exchange': 'file',
+                    'exchange_type': 'direct',
+                    'queue': 'file'}
+        return None
+
+
diff --git a/gnuviechadmin/managemails/admin.py b/gnuviechadmin/managemails/admin.py
index d74fcba..d1ddbdb 100644
--- a/gnuviechadmin/managemails/admin.py
+++ b/gnuviechadmin/managemails/admin.py
@@ -67,6 +67,8 @@ class MailboxCreationForm(forms.ModelForm):
 
         """
         mailbox = super(MailboxCreationForm, self).save(commit=False)
+        mailbox.username = Mailbox.objects.get_next_mailbox_name(
+            mailbox.osuser)
         mailbox.set_password(self.cleaned_data['password1'])
         if commit:
             mailbox.save()
@@ -113,12 +115,12 @@ class MailboxAdmin(ActivationChangeMixin, admin.ModelAdmin):
     list_filter = ('active',)
     fieldsets = (
         (None, {
-            'fields': ('username', 'password', 'osuser', 'active')}),
+            'fields': ('osuser', 'username', 'password', 'active')}),
     )
     add_fieldsets = (
         (None, {
             'classes': ('wide',),
-            'fields': ('username', 'password1', 'password2')}),
+            'fields': ('osuser', 'password1', 'password2')}),
     )
     search_fields = ('username',)
     ordering = ('username',)
diff --git a/gnuviechadmin/managemails/models.py b/gnuviechadmin/managemails/models.py
index 425d79f..737dda0 100644
--- a/gnuviechadmin/managemails/models.py
+++ b/gnuviechadmin/managemails/models.py
@@ -7,6 +7,7 @@ from model_utils.models import TimeStampedModel
 
 from domains.models import MailDomain
 from osusers.models import User as OsUser
+from osusers.tasks import create_file_mailbox, delete_file_mailbox
 
 
 class ActivateAbleMixin(models.Model):
@@ -20,12 +21,32 @@ class ActivateAbleMixin(models.Model):
         abstract = True
 
 
+class MailboxManager(models.Manager):
+
+    def get_next_mailbox_name(self, osuser):
+        count = 1
+        mailboxformat = "{0}p{1:02d}"
+        mailboxname = mailboxformat.format(osuser.username, count)
+
+        for box in self.values('username').filter(osuser=osuser).order_by(
+            'username'
+        ):
+            if box['username'] == mailboxname:
+                count += 1
+                mailboxname = mailboxformat.format(osuser.username, count)
+            else:
+                break
+        return mailboxname
+
+
 @python_2_unicode_compatible
 class Mailbox(ActivateAbleMixin, TimeStampedModel, models.Model):
     osuser = models.ForeignKey(OsUser)
     username = models.CharField(max_length=128, unique=True)
     password = models.CharField(max_length=255)
 
+    objects = MailboxManager()
+
     class Meta:
         verbose_name = _('Mailbox')
         verbose_name_plural = _('Mailboxes')
@@ -33,6 +54,14 @@ class Mailbox(ActivateAbleMixin, TimeStampedModel, models.Model):
     def set_password(self, password):
         self.password = sha512_crypt.encrypt(password)
 
+    def save(self, *args, **kwargs):
+        create_file_mailbox.delay(self.osuser.username, self.username).get()
+        super(Mailbox, self).save(*args, **kwargs)
+
+    def delete(self, *args, **kwargs):
+        delete_file_mailbox.delay(self.osuser.username, self.username).get()
+        super(Mailbox, self).delete(*args, **kwargs)
+
     def __str__(self):
         return self.username
 
diff --git a/gnuviechadmin/osusers/tasks.py b/gnuviechadmin/osusers/tasks.py
index 7edd7c7..99c7b1c 100644
--- a/gnuviechadmin/osusers/tasks.py
+++ b/gnuviechadmin/osusers/tasks.py
@@ -3,26 +3,6 @@ from __future__ import absolute_import
 from celery import shared_task
 
 
-class LdapRouter(object):
-
-    def route_for_task(self, task, args=None, kwargs=None):
-        if 'ldap' in task:
-            return {'exchange': 'ldap',
-                    'exchange_type': 'direct',
-                    'queue': 'ldap'}
-        return None
-
-
-class FileRouter(object):
-
-    def route_for_task(self, task, args=None, kwargs=None):
-        if 'file' in task:
-            return {'exchange': 'file',
-                    'exchange_type': 'direct',
-                    'queue': 'file'}
-        return None
-
-
 @shared_task
 def create_ldap_group(groupname, gid, descr):
     pass
@@ -71,3 +51,13 @@ def setup_file_mail_userdir(username):
 @shared_task
 def delete_file_mail_userdir(username):
     pass
+
+
+@shared_task
+def create_file_mailbox(username, mailboxname):
+    pass
+
+
+@shared_task
+def delete_file_mailbox(username, mailboxname):
+    pass