fixed a function where a variable needed to be global in order to be used corrently (this was in the timezone offset fix for unix)

functions/smtp.php

@@ -97,6 +97,8 @@
 
    /* Time offset for correct timezone */
    function timezone () {
+      global $invert_time;
+      
       $diff_second = date("Z");
       if ($invert_time)
           $diff_second = - $diff_second;