diff --git a/install/install.py b/install/install.py
index 9d2c13ed7..4d70f7e78 100755
--- a/install/install.py
+++ b/install/install.py
@@ -6,7 +6,7 @@ import time
 import os
 import sys
 import MySQLdb
-from smtplib import SMTP, SMTPAuthenticationError, SMTPConnectError
+from smtplib import SMTP, SMTPAuthenticationError, SMTPConnectError, SMTPSenderRefused
 import ConfigParser
 import socket
 import fcntl
@@ -127,7 +127,7 @@ class PreSetup(object):
             smtp.quit()
             return True
 
-        except (SMTPAuthenticationError, socket.timeout, socket.gaierror), e:
+        except (SMTPAuthenticationError, socket.timeout, socket.gaierror, SMTPSenderRefused, SMTPConnectError), e:
             color_print(e, 'red')
             return False
 
diff --git a/jumpserver.conf b/jumpserver.conf
index 4173bdc36..f184a246f 100644
--- a/jumpserver.conf
+++ b/jumpserver.conf
@@ -19,5 +19,5 @@ email_host = smtp.qq.com
 email_port = 25
 email_host_user = xxxxxxxx@qq.com
 email_host_password = xxxxxx
-email_use_tls = True
+email_use_tls = False