diff --git a/data/data.json b/data/data.json
index 97fcd0a..0205548 100644
--- a/data/data.json
+++ b/data/data.json
@@ -54,7 +54,9 @@
                 "[a-zA-Z\\_]+id=[^\\/|\\?|&]*(\\/|&(amp;)?)?",
                 "dcr=[^\\/|\\?|&]*(\\/|&(amp;)?)?"
             ],
-            "exceptions": [],
+            "exceptions": [
+                ".*(mail\\.google\\.)\\w{2,}(\\/mail\\/u\\/0)\\/.*"
+            ],
             "redirections": [
                 "url=([^\\/|\\?|&]*)"
             ]