Improve connection error reporting

class.phpmailer.php

@@ -1365,6 +1365,7 @@ public function smtpConnect($options = array())
                     return true;
                 } catch (phpmailerException $exc) {
                     $lastexception = $exc;
+                    $this->edebug($exc->getMessage());
                     // We must have connected, but then failed TLS or Auth, so close connection nicely
                     $this->smtp->quit();
                 }