diff --git a/TODO b/TODO
index 054e5f3..6612b45 100644
--- a/TODO
+++ b/TODO
@@ -1,3 +1,4 @@
+make sure all modules that can use socket.newtry
 make select interrupt safe
 adicionar exemplos de expansão: pipe, local, named pipe
 Add service name translation.
diff --git a/src/smtp.lua b/src/smtp.lua
index 70b511c..ac74205 100644
--- a/src/smtp.lua
+++ b/src/smtp.lua
@@ -106,7 +106,7 @@ function open(server, port)
     local tp = socket.try(tp.connect(server or SERVER, port or PORT, TIMEOUT))
     local s = setmetatable({tp = tp}, metat)
     -- make sure tp is closed if we get an exception
-    local try = socket.newtry(function() s:close() end)
+    s.try = socket.newtry(function() s:close() end)
     return s 
 end