diff --git a/postfix/compose.yaml b/postfix/compose.yaml
index 67d81bd..2ffd1c0 100644
--- a/postfix/compose.yaml
+++ b/postfix/compose.yaml
@@ -20,7 +20,7 @@ services:
       RELAYHOST_PASSWORD: "${BREVO_SMTP_PASS}"
 
       # Alleen jouw domeinen mogen als afzender
-      ALLOWED_SENDER_DOMAINS: "japnet.nl,notify.japnet.nl"
+      ALLOWED_SENDER_DOMAINS: "japnet.nl notify.japnet.nl"
 
       # Alleen jouw LAN/VLANs mogen relayed worden
       POSTFIX_mynetworks: "127.0.0.0/8 192.168.2.0/24 10.0.50.0/24 10.0.60.0/24"