diff --git a/nodes/htz/ex42-1048908.py b/nodes/htz/ex42-1048908.py
index b2bf954..04a7182 100644
--- a/nodes/htz/ex42-1048908.py
+++ b/nodes/htz/ex42-1048908.py
@@ -226,6 +226,10 @@ nodes['htz.ex42-1048908'] = {
                 # RaumZeitLabor
                 '5.9.77.39',
                 '2a01:4f8:161:9025:4::/64',
+
+                # c3voc
+                '185.106.84.32/26',
+                '2001:67c:20a0:e::/64',
             },
             'password': bwpass.password('rspamd.mx0.kunbox.net'),
         },