diff --git a/Cfg/etc/postfix/postscreen_access.cidr/postscreen_access.cidr b/Cfg/etc/postfix/postscreen_access.cidr/postscreen_access.cidr
index 82da434..b88b780 100644
--- a/Cfg/etc/postfix/postscreen_access.cidr/postscreen_access.cidr
+++ b/Cfg/etc/postfix/postscreen_access.cidr/postscreen_access.cidr
@@ -39,3 +39,4 @@
 # offrespourlespros le 29/05/2015
 149.202.29.192/28                         reject
 37.187.141.230                            reject
+2001:41d0::/44                            reject