diff --git a/host_vars/piwik.warenform.de/piwik-ipt-server.yml b/host_vars/piwik.warenform.de/piwik-ipt-server.yml
index bdc8e3d..945c705 100644
--- a/host_vars/piwik.warenform.de/piwik-ipt-server.yml
+++ b/host_vars/piwik.warenform.de/piwik-ipt-server.yml
@@ -20,8 +20,8 @@ munin_remote_ipv6: "2a01:4f9:3070:2bda::227"
 # --- HTTP
 fw_http_server_ips: $ext_1_ip
 
-# --- Block
-fw_blocked_ips_v4: 222.184.0.0/13 61.160.0.0/16 116.8.0.0/14
+# --- Mail
+fw_mail_client_ips: $ext_1_ip
 
 # --- Protection / limits
 fw_per_IP_connection_limit: 501