fix recipe

sulu/form-bundle/2.0/config/packages/sulu_form.yaml

@@ -1,8 +1,8 @@
 sulu_form:
     mail:
-        from: "%sulu_admin.email%"
-        to: "%sulu_admin.email%"
-        sender: "%sulu_admin.email%"
+        from: "%env(resolve:SULU_FORM_EMAIL_FROM)%"
+        to: "%env(resolve:SULU_FORM_EMAIL_TO)%"
+        sender: "%env(resolve:SULU_FORM_EMAIL_SENDER)%"
 
 framework:
     esi: true

sulu/form-bundle/2.0/manifest.json

@@ -4,5 +4,10 @@
     },
     "copy-from-recipe": {
         "config/": "%CONFIG_DIR%/"
+    },
+    "env": {
+        "SULU_FORM_EMAIL_FROM": "",
+        "SULU_FORM_EMAIL_TO": "",
+        "SULU_FORM_EMAIL_SENDER": ""
     }
 }