diff --git a/applications-tree.json b/applications-tree.json
index 0592316..bbde86d 100644
--- a/applications-tree.json
+++ b/applications-tree.json
@@ -15,6 +15,10 @@
         {
             "name": "roundcube",
             "version": "x.?" 
+        },
+        {
+            "name": "smtp_server",
+            "version": "x.?"
         }
     ]
 }
\ No newline at end of file