diff --git a/postfix/mailion/main.cf b/postfix/mailion/main.cf
index 2213802..ebacc08 100644
--- a/postfix/mailion/main.cf
+++ b/postfix/mailion/main.cf
@@ -13,6 +13,7 @@ myhostname = mx-app.avroid.tech
 myorigin = $mydomain
 mynetworks = 127.0.0.0/8
     10.0.0.3/32
+    10.4.0.102/32
     172.17.0.0/16
 
 ### Transport settings