diff --git a/upd/add_fwd_only.sh b/upd/add_fwd_only.sh
new file mode 100755
index 000000000..a5af47912
--- /dev/null
+++ b/upd/add_fwd_only.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Define exim config
+if [ -e "/etc/exim/exim.conf" ]; then
+    # RHEL or CentOS
+    conf="/etc/exim/exim.conf"
+else
+    # Debian or Ubuntu
+    conf="/etc/exim4/exim4.conf.template"
+fi
+
+# Check existance
+if [ ! -e "$conf" ]; then
+    exit
+fi
+
+# Check if fwd_only flag
+check_flag=$(grep localuser_fwd_only $conf)
+if [ ! -z "$check_flag" ]; then
+    exit
+fi
+
+# Define new router
+fwd1='localuser_fwd_only:\n  driver = accept\n  transport = devnull\n'
+fwd2='  condition = \${if exists{/etc/exim/domains/\$domain/fwd_only}'
+fwd3='{\${lookup{\$local_part}lsearch{/etc/exim/domains/\$domain/fwd_only}'
+fwd4='{true}{false}}}}\n\n'
+
+# Insert router
+sed -i "s%localuser_spam:%$fwd1$fwd2$fwd3${fwd4}localuser_spam:%" $conf
+
+# Restart mail server
+/usr/local/vesta/bin/v-restart-mail
+
+exit