diff --git a/util/reserved.json b/util/reserved.json
index dd58de1c7..093fdfa17 100644
--- a/util/reserved.json
+++ b/util/reserved.json
@@ -31,6 +31,7 @@
     "doc",
     "documentation",
     "email",
+    "emails",
     "error",
     "errors",
     "event",
@@ -60,6 +61,7 @@
     "media",
     "mobile",
     "net",
+    "network",
     "news",
     "noc",
     "notification",
@@ -114,6 +116,7 @@
     "url[1-9999]",
     "user",
     "users",
+    "webmail",
     "webmaster",
     "whois",
     "www[1-99]",