diff --git a/utils/webmail_freebox b/utils/webmail_freebox
index 4fb59b50..1e9a6c30 100755
--- a/utils/webmail_freebox
+++ b/utils/webmail_freebox
@@ -8,11 +8,13 @@
 # le routage et de vider le firewall quand vous n'en avez
 # plus besoin
 
-echo 1 >> /proc/sys/net/ipv4/ip_forward
 
 iptables -F
 iptables -t nat -F
 iptables -t mangle -F
+iptables -P FORWARD DROP
+
+echo 1 >> /proc/sys/net/ipv4/ip_forward
 
 iptables -A FORWARD -d 138.231.136.3 -p tcp --dport 80 -j ACCEPT
 iptables -A FORWARD -s 138.231.136.3 -p tcp --sport 80 -j ACCEPT
@@ -25,4 +27,3 @@ iptables -t nat -A POSTROUTING -d 138.231.136.3 -j SNAT --to-source 138.231.136.
 
 iptables -t nat -A PREROUTING -d 82.225.39.54 -p tcp --dport 443 -j DNAT --to-destination 138.231.136.3
 iptables -t nat -A POSTROUTING -d 138.231.136.3 -j SNAT --to-source 138.231.136.9
-