diff --git a/caddy/update-caddy-certs.sh b/caddy/update-caddy-certs.sh
index bab36b1..2a868d2 100755
--- a/caddy/update-caddy-certs.sh
+++ b/caddy/update-caddy-certs.sh
@@ -260,6 +260,13 @@ for domain in $DOMAINS; do
     OUTPUT="${OUTPUT}        format console\n"
     OUTPUT="${OUTPUT}    }\n"
     OUTPUT="${OUTPUT}}\n\n"
+    
+    # Mailadmin Block
+    OUTPUT="${OUTPUT}# MailAdmin UI\n"
+    OUTPUT="${OUTPUT}mailadmin.${domain} {\n"
+    OUTPUT="${OUTPUT}    encode gzip\n"
+    OUTPUT="${OUTPUT}    reverse_proxy mailadmin:3000\n"
+    OUTPUT="${OUTPUT}}\n\n"
 
     # Autodiscover / Autoconfig Block
     OUTPUT="${OUTPUT}# Autodiscover/Autoconfig für $domain\n"