diff --git a/module/mail/control.php b/module/mail/control.php
index 64eab60237..8f9955127c 100755
--- a/module/mail/control.php
+++ b/module/mail/control.php
@@ -11,6 +11,24 @@
  */
 class mail extends control
 {
+    /**
+     * Construct.
+     * 
+     * @access public
+     * @return void
+     */
+    public function __construct()
+    {
+        parent::__construct();
+
+        /* Task #1967. check the function of fsocket. */
+        if(!function_exists('fsockopen'))
+        {
+            echo js::alert($this->lang->mail->nofsocket);
+            die(js::locate('back'));
+        }
+    }
+
     /**
      * The index page, goto edit page or detect page.
      * 
diff --git a/module/mail/model.php b/module/mail/model.php
index 7d0f7e3cea..77d6ce94ed 100644
--- a/module/mail/model.php
+++ b/module/mail/model.php
@@ -243,9 +243,6 @@ class mailModel extends model
     {
         if(!$this->config->mail->turnon) return;
 
-        /* Task #1967. check the function of fsocket. */
-        if(function_exists('fsockopen')) die(js::alert($this->lang->mail->nofsocket));
-
         ob_start();
         $toList  = $toList ? explode(',', str_replace(' ', '', $toList)) : array();
         $ccList  = $ccList ? explode(',', str_replace(' ', '', $ccList)) : array();