Maybe fix the tests

tests/compose/webmail/01_ensure_admin_unreachable.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-IP="$(docker inspect webmail_webmail_1|jq -r '.[0].NetworkSettings.Networks.webmail_default.IPAddress')"
+IP="$(docker inspect webmail-webmail-1|jq -r '.[0].NetworkSettings.Networks.webmail_webmail.IPAddress')"
 
 MAIN_RETURN_CODE=$(curl -I -so /dev/null -w "%{http_code}" http://$IP/)
 [[ $MAIN_RETURN_CODE -ne 200 && $MAIN_RETURN_CODE -ne 302 ]] && echo "The default page of snappymail hasn't returned 200 but $MAIN_RETURN_CODE!" >>/dev/stderr && exit 1

tests/compose/webmail/docker-compose.yml

@@ -32,6 +32,9 @@ services:
       - "127.0.0.1:993:993"
     volumes:
       - "/mailu/certs:/certs"
+    networks:
+      - default
+      - webmail
 
   admin:
     image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}admin:${MAILU_VERSION:-local}
@@ -105,6 +108,8 @@ services:
       - "/mailu/webmail:/data"
     depends_on:
       - imap
+    networks:
+      - webmail
 
 
 networks:
@@ -114,6 +119,8 @@ networks:
       driver: default
       config:
         - subnet: 192.168.203.0/24
+  webmail:
+    driver: bridge
   noinet:
     driver: bridge
     internal: true