diff --git a/Files/iptables/mailserver.v4 b/Files/iptables/mailserver.v4
new file mode 100644
index 0000000000000000000000000000000000000000..c732b35bb5ed002745f323b8e3cfcf61a6f25d6d
--- /dev/null
+++ b/Files/iptables/mailserver.v4
@@ -0,0 +1,3 @@
+iptables -A INPUT -p tcp -s 130.236.254.0/24 --dport 9101 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
+iptables -A OUTPUT -p tcp --sport 9101 -m conntrack --ctstate ESTABLISHED -j ACCEPT
+iptables -A INPUT -p tcp --dport 9101 -j DROP
diff --git a/Files/iptables/mailserver.v6 b/Files/iptables/mailserver.v6
new file mode 100644
index 0000000000000000000000000000000000000000..d12bf60cdc4310950d8aa156326c0debfceebd4b
--- /dev/null
+++ b/Files/iptables/mailserver.v6
@@ -0,0 +1,3 @@
+ip6tables -A INPUT -p tcp -s 2001:6b0:17:f0a0::/64 --dport 9101 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
+ip6tables -A OUTPUT -p tcp --sport 9101 -m conntrack --ctstate ESTABLISHED -j ACCEPT
+ip6tables -A INPUT -p tcp --dport 9101 -j DROP