diff --git a/.dockerignore b/.dockerignore
deleted file mode 100644
index 6b8710a7..00000000
--- a/.dockerignore
+++ /dev/null
@@ -1 +0,0 @@
-.git
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 50b81cbb..00000000
--- a/Dockerfile
+++ /dev/null
@@ -1,18 +0,0 @@
-FROM python:3.10.0-alpine3.15
-
-WORKDIR /usr/src/app
-
-RUN apk add --update --no-cache \
-    git \
-    build-base \
-    openldap-dev \
-    python3-dev \
-    libpq-dev \
-    && rm -rf /var/cache/apk/*
-
-# FIX https://github.com/python-ldap/python-ldap/issues/432
-RUN echo 'INPUT ( libldap.so )' > /usr/lib/libldap_r.so
-
-COPY requirements.txt ./
-RUN pip install --no-cache-dir -r requirements.txt
-COPY ./ .
diff --git a/Makefile b/Makefile
index 68ff014e..67c0c15b 100644
--- a/Makefile
+++ b/Makefile
@@ -14,12 +14,6 @@ help:
 	@echo '  make rsync_upload                         '
 	@echo '  make install_debian_packages              '
 
-buildimage:
-	 docker build -t dynamicweb:$$(git describe) .
-
-releaseimage: buildimage
-	./release.sh
-
 collectstatic:
 	$(PY?) $(BASEDIR)/manage.py collectstatic
 
diff --git a/datacenterlight/cms_plugins.py b/datacenterlight/cms_plugins.py
index 52b4f19f..ffecbf0b 100644
--- a/datacenterlight/cms_plugins.py
+++ b/datacenterlight/cms_plugins.py
@@ -1,6 +1,7 @@
 from cms.plugin_base import CMSPluginBase
 from cms.plugin_pool import plugin_pool
 from django.conf import settings
+from django.utils.translation import ugettext_lazy as _
 
 from .cms_models import (
     DCLBannerItemPluginModel, DCLBannerListPluginModel, DCLContactPluginModel,
@@ -10,7 +11,9 @@ from .cms_models import (
     DCLSectionPromoPluginModel, DCLCalculatorPluginModel
 )
 from .models import VMTemplate
-from datacenterlight.utils import clear_all_session_vars
+from datacenterlight.utils import clear_all_session_vars, get_ip_address
+
+import ipaddress
 
 
 @plugin_pool.register_plugin
@@ -170,6 +173,25 @@ class DCLContactPlugin(CMSPluginBase):
     render_template = "datacenterlight/cms/contact.html"
     cache = False
 
+    def render(self, context, instance, placeholder):
+        context = super(DCLContactPlugin, self).render(
+            context, instance, placeholder
+        )
+        request_ip_address = get_ip_address(context['request'])
+        request_v4v6 = ''
+        if (type(ipaddress.ip_address(request_ip_address)) ==
+                ipaddress.IPv4Address):
+            request_v4v6 = 'IPv4'
+        elif (type(ipaddress.ip_address(request_ip_address)) ==
+                ipaddress.IPv6Address):
+            request_v4v6 = 'IPv6'
+        context['ip_address_label_title'] = _(
+            "You are requesting this website from "
+            "{ip_address}.".format(ip_address=request_ip_address))
+        context['ip_address_label'] = _(
+            "Enter '{v4v6}':".format(v4v6=request_v4v6))
+        return context
+
 
 @plugin_pool.register_plugin
 class DCLFooterPlugin(CMSPluginBase):
diff --git a/datacenterlight/forms.py b/datacenterlight/forms.py
index b697f694..d5b6f814 100644
--- a/datacenterlight/forms.py
+++ b/datacenterlight/forms.py
@@ -1,9 +1,42 @@
 from django import forms
+from django.utils.translation import ugettext_lazy as _
+from datacenterlight.utils import get_ip_address
+
+import logging
 
 from .models import ContactUs
 
+import ipaddress
+logger = logging.getLogger(__name__)
+
 
 class ContactForm(forms.ModelForm):
     class Meta:
-        fields = ['name', 'email', 'message']
+        fields = ['name', 'email', 'message', 'ip_address']
         model = ContactUs
+        labels = {
+            "ip_address": _("You are requesting this website from "
+                            "{{ip_address}}. Enter 'IPv{{v4v6}}':".format(
+                                ip_address='test', v4v6='4'
+                            ))
+        }
+
+    def __init__(self, *args, **kwargs):
+        self.request = kwargs.pop('request', None)
+        super(ContactForm, self).__init__(*args, **kwargs)
+        self.fields['ip_address'] = forms.CharField(required=True)
+
+    def clean_ip_address(self):
+        input_ip_address_text = self.cleaned_data.get('ip_address')
+        request_ip_address = get_ip_address(self.request)
+        ip_address_type_text = 'ipv4'
+        if (type(ipaddress.ip_address(request_ip_address))
+                == ipaddress.IPv4Address):
+            ip_address_type_text = 'ipv4'
+        elif (type(ipaddress.ip_address(request_ip_address))
+                == ipaddress.IPv6Address):
+            ip_address_type_text = 'ipv6'
+        if input_ip_address_text.strip().lower() == ip_address_type_text:
+            return request_ip_address
+        else:
+            raise forms.ValidationError(_("Input correct IP address type"))
diff --git a/datacenterlight/migrations/0032_contactus_ip_address.py b/datacenterlight/migrations/0032_contactus_ip_address.py
new file mode 100644
index 00000000..836fcc10
--- /dev/null
+++ b/datacenterlight/migrations/0032_contactus_ip_address.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.4 on 2021-02-11 10:12
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('datacenterlight', '0031_vmpricing_stripe_coupon_id'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='contactus',
+            name='ip_address',
+            field=models.TextField(default='', null=True),
+        ),
+    ]
diff --git a/datacenterlight/models.py b/datacenterlight/models.py
index 64d785a2..a075fd66 100644
--- a/datacenterlight/models.py
+++ b/datacenterlight/models.py
@@ -118,6 +118,7 @@ class ContactUs(models.Model):
     name = models.CharField(max_length=250)
     email = models.CharField(max_length=250)
     message = models.TextField()
+    ip_address = models.TextField(default='', null=True)
     field = models.DateTimeField(auto_now_add=True)
 
     def __str__(self):
diff --git a/datacenterlight/tasks.py b/datacenterlight/tasks.py
index 899b506f..9c98b729 100644
--- a/datacenterlight/tasks.py
+++ b/datacenterlight/tasks.py
@@ -195,7 +195,7 @@ def handle_metadata_and_emails(order_id, vm_id, manager, user, specs,
     email_data = {
         'subject': settings.DCL_TEXT + " Order from %s" % context['email'],
         'from_email': settings.DCL_SUPPORT_FROM_ADDRESS,
-        'to': ['dcl-orders@ungleich.ch'],
+        'to': ['info@ungleich.ch'],
         'body': "\n".join(
             ["%s=%s" % (k, v) for (k, v) in context.items()]),
         'reply_to': [context['email']],
@@ -233,4 +233,4 @@ def handle_metadata_and_emails(order_id, vm_id, manager, user, specs,
 
         logger.debug("New VM ID is {vm_id}".format(vm_id=vm_id))
         if vm_id > 0:
-            get_or_create_vm_detail(custom_user, manager, vm_id)
+            get_or_create_vm_detail(custom_user, manager, vm_id)
\ No newline at end of file
diff --git a/datacenterlight/templates/datacenterlight/contact_form.html b/datacenterlight/templates/datacenterlight/contact_form.html
index 87848ff2..afaf7144 100644
--- a/datacenterlight/templates/datacenterlight/contact_form.html
+++ b/datacenterlight/templates/datacenterlight/contact_form.html
@@ -26,7 +26,7 @@
         <div class="form-group">
             <label class="control-label col-sm-2" for="name">{% trans "Name" %}</label>
             <div class="col-sm-10">
-                <input type="text" name="name" class="form-control" data-minlength="3" data-error="{% trans 'Please enter your name.' %}" required>
+                <input id="name" type="text" name="name" class="form-control" data-minlength="3" data-error="{% trans 'Please enter your name.' %}" required value="{{contact_form.name.value}}">
                 <div class="help-block with-errors"></div>
                 {{contact_form.name.errors}}
             </div>
@@ -34,7 +34,7 @@
         <div class="form-group">
             <label class="control-label col-sm-2" for="email">{% trans "Email" %}</label>
             <div class="col-sm-10">
-                <input name="email" type="email" pattern="^[^@\s]+@([^@\s]+\.)+[^@\s]+$" class="form-control" data-error="{% trans 'Please enter a valid email address.' %}" required>
+                <input name="email" type="email" id="email" pattern="^[^@\s]+@([^@\s]+\.)+[^@\s]+$" class="form-control" data-error="{% trans 'Please enter a valid email address.' %}" required value="{{contact_form.email.value}}">
                 <div class="help-block with-errors"></div>
                 {{contact_form.email.errors}}
             </div>
@@ -42,11 +42,19 @@
         <div class="form-group">
             <label class="control-label col-sm-2" for="message">{% trans "Message" %}</label>
             <div class="col-sm-10">
-                <textarea class="form-control" name="message" id="message" rows="6" required></textarea>
+                <textarea class="form-control" name="message" id="message" rows="6" required>{{contact_form.message.value}}</textarea>
                 <div class="help-block with-errors"></div>
                 {{contact_form.message.errors}}
             </div>
         </div>
+        <div class="row"><div class="col-sm-2">&nbsp;</div><div class="col-sm-10">{{ ip_address_label_title }}{{contact_form.message.errors}}</div></div>
+        <div class="form-group">
+            <label class="control-label col-sm-2" for="ip_address" style="white-space: nowrap;" >{{ ip_address_label }}</label>
+            <div class="col-sm-10">
+                <input name="ip_address" id="ip_address" type="text" class="form-control"data-error="{% trans 'Please enter the text IPv4 or IPv6 based on your IP address.' %}" required value="{{contact_form.ip_address.value}}">
+                <div class="help-block with-errors">{{contact_form.ip_address.errors}}</div>
+            </div>
+        </div>
         <div class="form-group">
             <div class="col-sm-offset-2 col-sm-10 text-right">
                 <div class="form-error hide">{% trans "Sorry, there was an unexpected error. Kindly retry." %}</div>
diff --git a/datacenterlight/utils.py b/datacenterlight/utils.py
index 4e8094c0..435de23c 100644
--- a/datacenterlight/utils.py
+++ b/datacenterlight/utils.py
@@ -20,7 +20,7 @@ logger = logging.getLogger(__name__)
 
 eu_countries = ['at', 'be', 'bg', 'ch', 'cy', 'cz', 'hr', 'dk',
                 'ee', 'fi', 'fr', 'mc', 'de', 'gr', 'hu', 'ie', 'it',
-                'lv', 'lu', 'mt', 'nl', 'pl', 'pt', 'ro','sk', 'si', 'es',
+                'lv', 'lu', 'mt', 'nl', 'po', 'pt', 'ro','sk', 'si', 'es',
                 'se', 'gb']
 
 
@@ -303,3 +303,12 @@ def create_tax_id(stripe_customer_id, billing_address_id, type,
         billing_address.vat_validation_status = tax_id_obj.verification.status
         billing_address.save()
     return tax_id_obj
+
+
+def get_ip_address(request):
+    x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
+    if x_forwarded_for:
+        ip = x_forwarded_for.split(',')[-1].strip()
+    else:
+        ip = request.META.get('REMOTE_ADDR')
+    return ip
\ No newline at end of file
diff --git a/datacenterlight/views.py b/datacenterlight/views.py
index 5bf68e0a..ed2437ad 100644
--- a/datacenterlight/views.py
+++ b/datacenterlight/views.py
@@ -49,11 +49,30 @@ class ContactUsView(FormView):
     template_name = "datacenterlight/contact_form.html"
     form_class = ContactForm
 
+    def get_form_kwargs(self):
+        kw = super(ContactUsView, self).get_form_kwargs()
+        kw['request'] = self.request
+        return kw
+
     def get(self, request, *args, **kwargs):
         return HttpResponseRedirect(reverse('datacenterlight:index'))
 
     def form_invalid(self, form):
         if self.request.is_ajax():
+            logger.debug(form)
+            # request_ip_address = get_ip_address(self.request)
+            # request_v4v6 = ''
+            # if (type(ipaddress.ip_address(request_ip_address)) ==
+            #         ipaddress.IPv4Address):
+            #     request_v4v6 = 'IPv4'
+            # elif (type(ipaddress.ip_address(request_ip_address)) ==
+            #       ipaddress.IPv6Address):
+            #     request_v4v6 = 'IPv6'
+            # context['ip_address_label_title'] = _(
+            #     "You are requesting this website from "
+            #     "{ip_address}.".format(ip_address=request_ip_address))
+            # context['ip_address_label'] = _(
+            #     "Enter '{v4v6}':".format(v4v6=request_v4v6))
             return self.render_to_response(
                 self.get_context_data(contact_form=form))
         else:
@@ -1333,7 +1352,7 @@ def do_provisioning_generic(
         'subject': (settings.DCL_TEXT +
                     " Payment received from %s" % context['email']),
         'from_email': settings.DCL_SUPPORT_FROM_ADDRESS,
-        'to': ['dcl-orders@ungleich.ch'],
+        'to': ['info@ungleich.ch'],
         'body': "\n".join(
             ["%s=%s" % (k, v) for (k, v) in context.items()]),
         'reply_to': [context['email']],
@@ -1507,7 +1526,7 @@ def do_provisioning(request, stripe_api_cus_id, card_details_response,
             'subject': (settings.DCL_TEXT +
                         " Payment received from %s" % context['email']),
             'from_email': settings.DCL_SUPPORT_FROM_ADDRESS,
-            'to': ['dcl-orders@ungleich.ch'],
+            'to': ['info@ungleich.ch'],
             'body': "\n".join(
                 ["%s=%s" % (k, v) for (k, v) in context.items()]),
             'reply_to': [context['email']],
diff --git a/digitalglarus/locale/de/LC_MESSAGES/django.po b/digitalglarus/locale/de/LC_MESSAGES/django.po
index ef7a46b5..ec96f5dc 100644
--- a/digitalglarus/locale/de/LC_MESSAGES/django.po
+++ b/digitalglarus/locale/de/LC_MESSAGES/django.po
@@ -376,6 +376,8 @@ msgid ""
 "                    digitalglarus.ch<br/>\n"
 "                    hack4lgarus.ch<br/>\n"
 "                    ipv6onlyhosting.com<br/>\n"
+"                    ipv6onlyhosting.ch<br/>\n"
+"                    ipv6onlyhosting.net<br/>\n"
 "                    django-hosting.ch<br/>\n"
 "                    rails-hosting.ch<br/>\n"
 "                    node-hosting.ch<br/>\n"
@@ -634,8 +636,8 @@ msgstr ""
 "Internetangebot der ungleich glarus ag, welches unter den nachfolgenden "
 "Domains erreichbar ist:<br/><br/>ungleich.ch<br/>datacenterlight.ch<br/"
 ">devuanhosting.com<br/>devuanhosting.ch<br/>digitalglarus.ch<br/>hack4lgarus."
-"ch<br/>ipv6onlyhosting.com<br/>django-hosting.ch<br/>rails-hosting.ch"
-"<br/>node-hosting.ch<br/>blog."
+"ch<br/>ipv6onlyhosting.com<br/>ipv6onlyhosting.ch<br/>ipv6onlyhosting.net<br/"
+">django-hosting.ch<br/>rails-hosting.ch<br/>node-hosting.ch<br/>blog."
 "ungleich.ch<br/><br/>Der Datenschutzbeauftragte des Verantwortlichen ist:<br/"
 "><br/>Sanghee Kim<br/>ungleich glarus ag<br/>Bahnhofstrasse 1<br/>8783 "
 "Linthal (CH)<br/>E-Mail: <a href=\"mailto:sanghee.kim@ungleich.ch\">sanghee."
@@ -836,4 +838,3 @@ msgstr ""
 
 #~ msgid "index/?$"
 #~ msgstr "index/?$"
-
diff --git a/dynamicweb/settings/base.py b/dynamicweb/settings/base.py
index 62fe2897..03013ea5 100644
--- a/dynamicweb/settings/base.py
+++ b/dynamicweb/settings/base.py
@@ -631,6 +631,8 @@ GOOGLE_ANALYTICS_PROPERTY_IDS = {
     'datacenterlight.ch': 'UA-62285904-8',
     'devuanhosting.ch': 'UA-62285904-9',
     'devuanhosting.com': 'UA-62285904-9',
+    'ipv6onlyhosting.ch': 'UA-62285904-10',
+    'ipv6onlyhosting.net': 'UA-62285904-10',
     'ipv6onlyhosting.com': 'UA-62285904-10',
     'comic.ungleich.ch': 'UA-62285904-13',
     '127.0.0.1:8000': 'localhost',
diff --git a/dynamicweb/settings/prod.py b/dynamicweb/settings/prod.py
index 0590ca27..445748ad 100644
--- a/dynamicweb/settings/prod.py
+++ b/dynamicweb/settings/prod.py
@@ -28,7 +28,9 @@ ALLOWED_HOSTS = [
     ".devuanhosting.ch",
     ".devuanhosting.com",
     ".digitalezukunft.ch",
+    ".ipv6onlyhosting.ch",
     ".ipv6onlyhosting.com",
+    ".ipv6onlyhosting.net",
     ".digitalglarus.ch",
     ".hack4glarus.ch",
     ".xn--nglarus-n2a.ch"
diff --git a/hosting/views.py b/hosting/views.py
index e2f6e13b..ac5f81de 100644
--- a/hosting/views.py
+++ b/hosting/views.py
@@ -1315,8 +1315,7 @@ class InvoiceListView(LoginRequiredMixin, TemplateView):
                 logger.debug("User does not exist")
                 cu = self.request.user
             invs = stripe.Invoice.list(customer=cu.stripecustomer.stripe_id,
-                                       count=100,
-                                       status='paid')
+                                       count=100)
             paginator = Paginator(invs.data, 10)
             try:
                 invs_page = paginator.page(page)
@@ -1911,7 +1910,7 @@ class VirtualMachineView(LoginRequiredMixin, View):
             'subject': ("Deleted " if response['status']
                         else "ERROR deleting ") + admin_msg_sub,
             'from_email': settings.DCL_SUPPORT_FROM_ADDRESS,
-            'to': ['dcl-orders@ungleich.ch'],
+            'to': ['info@ungleich.ch'],
             'body': "\n".join(
                 ["%s=%s" % (k, v) for (k, v) in admin_email_body.items()]),
         }
diff --git a/release.sh b/release.sh
deleted file mode 100755
index 535cc7d4..00000000
--- a/release.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/sh
-# Nico Schottelius, 2021-12-17
-
-current=$(git describe --dirty)
-last_tag=$(git describe --tags --abbrev=0)
-registry=harbor.ungleich.svc.p10.k8s.ooo/ungleich-public
-image_url=$registry/dynamicweb:${current}
-
-if echo $current | grep -q -e 'dirty$'; then
-    echo Refusing to release a dirty tree build
-    exit 1
-fi
-
-if [ "$current" != "$last_tag" ]; then
-    echo "Last tag ($last_tag) is not current version ($current)"
-    echo "Only release proper versions"
-    exit 1
-fi
-
-docker tag dynamicweb:${current} ${image_url}
-docker push ${image_url}
diff --git a/requirements.txt b/requirements.txt
index 8d04a189..e7769a7e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ django-compressor==2.0
 django-debug-toolbar==1.4
 python-dotenv==0.10.3
 django-extensions==1.6.7
-django-filer==2.1.2
+django-filer==1.2.0
 django-filter==0.13.0
 django-formtools==1.0
 django-guardian==1.4.4
@@ -83,7 +83,7 @@ stripe==2.41.0
 wheel==0.29.0
 django-admin-honeypot==1.0.0
 coverage==4.3.4
-git+https://github.com/ungleich/python-oca.git#egg=oca
+git+https://github.com/ungleich/python-oca.git#egg=python-oca
 djangorestframework==3.6.3
 flake8==3.3.0
 python-memcached==1.58
diff --git a/templates/gdpr/gdpr_banner.html b/templates/gdpr/gdpr_banner.html
index f927f8ee..7e9f5c7f 100644
--- a/templates/gdpr/gdpr_banner.html
+++ b/templates/gdpr/gdpr_banner.html
@@ -134,6 +134,8 @@
                     digitalglarus.ch<br/>
                     hack4lgarus.ch<br/>
                     ipv6onlyhosting.com<br/>
+                    ipv6onlyhosting.ch<br/>
+                    ipv6onlyhosting.net<br/>
                     django-hosting.ch<br/>
                     rails-hosting.ch<br/>
                     node-hosting.ch<br/>
diff --git a/utils/ldap_manager.py b/utils/ldap_manager.py
index d40e931f..ee190732 100644
--- a/utils/ldap_manager.py
+++ b/utils/ldap_manager.py
@@ -3,7 +3,6 @@ import hashlib
 import random
 import ldap3
 import logging
-import unicodedata
 
 from django.conf import settings
 
@@ -102,7 +101,7 @@ class LdapManager:
                     "uidNumber": [str(uidNumber)],
                     "gidNumber": [str(settings.LDAP_CUSTOMER_GROUP_ID)],
                     "loginShell": ["/bin/bash"],
-                    "homeDirectory": ["/home/{}".format(unicodedata.normalize('NFKD', user).encode('ascii','ignore'))],
+                    "homeDirectory": ["/home/{}".format(user).encode("utf-8")],
                     "mail": email.encode("utf-8"),
                     "userPassword": [self._ssha_password(
                         password.encode("utf-8")