diff --git a/marietje/marietje/context_processors.py b/marietje/marietje/context_processors.py
index 170dd78..5747c16 100644
--- a/marietje/marietje/context_processors.py
+++ b/marietje/marietje/context_processors.py
@@ -1,6 +1,37 @@
+import ipaddress
+
 from django.conf import settings
 
+def _client_internal(request):
+    """
+    If the client is internal, we will allow to show more info
+
+    A client is considered internal if:
+      - Logged in
+      - Accesses from a trusted IP range
+    """
+    if request.user.is_authenticated:
+        return True
+
+    remote_ip = ipaddress.ip_address(request.META['REMOTE_ADDR'])
+
+
+    for ip_range in getattr(settings, 'TRUSTED_IP_RANGES', []):
+        net = ipaddress.ip_network(ip_range)
+        if remote_ip in net:
+            return True
+
+    return False
+
 
 def global_settings(request):
-    return {'issues_url': settings.ISSUES_URL, 'contact_email': settings.CONTACT_EMAIL,
-            'merge_requests_url': settings.MERGE_REQUESTS_URL}
+    internal = _client_internal(request)
+    contact_email = settings.CONTACT_EMAIL
+    if not internal:
+        contact_email = contact_email.replace('@', ' [at] ')
+    return {
+        'client_internal': internal,
+        'issues_url': settings.ISSUES_URL,
+        'contact_email': contact_email,
+        'merge_requests_url': settings.MERGE_REQUESTS_URL
+    }
diff --git a/marietje/marietje/settings.py b/marietje/marietje/settings.py
index 255071a..1d8e88f 100644
--- a/marietje/marietje/settings.py
+++ b/marietje/marietje/settings.py
@@ -138,3 +138,7 @@ STATS_REQUEST_IGNORE_USER_IDS = []
 
 ISSUES_URL = 'https://gitlab.science.ru.nl/Marietje/MarietjeDjango/issues'
 MERGE_REQUESTS_URL = 'https://gitlab.science.ru.nl/Marietje/MarietjeDjango/merge_requests'
+TRUSTED_IP_RANGES = [
+    '131.174.0.0/16'    # RU wired
+    '145.116.136.0/22'  # eduroam
+]
diff --git a/marietje/marietje/templates/base.html b/marietje/marietje/templates/base.html
index 05536f2..788569a 100644
--- a/marietje/marietje/templates/base.html
+++ b/marietje/marietje/templates/base.html
@@ -69,10 +69,12 @@
             {% endif %}
             {% block content %}{% endblock content %}
         </div>
+        {% if client_internal %}
         <footer>
             <a href="{% url 'privacy' %}">Privacy (Dutch)</a> |
             <a href="{{ issues_url }}" target="_blank">Issues</a> |
             Email: <a href="mailto:{{ contact_email }}">{{ contact_email }}</a>.<br>
         </footer>
+        {% endif %}
     </body>
 </html>
diff --git a/marietje/marietje/templates/registration/login.html b/marietje/marietje/templates/registration/login.html
index 4165e73..fe94995 100644
--- a/marietje/marietje/templates/registration/login.html
+++ b/marietje/marietje/templates/registration/login.html
@@ -27,7 +27,7 @@
                 </div>
             </div>
             <div class="text-center">
-                Don't have an account? Send an email to {{ contact_email }}<br>
+                Don't have an account? Send an email to &lt;{{ contact_email }}&gt;<br>
                 <a href="{% url 'forgotpassword' %}" >Forgot your password? Reset password</a>
             </div>
         </div>