Error while Installation on CentOS

Thanks allot pdvyas
Actually i tried to find on internet and i read some forums. And i got same solutions and its working now. I am getting Error for configuration of outgoing email server as below

outgoing_email_settings/outgoing_email_settings.py", line 29, in validate
sess = smtpserver.sess
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/email_lib/smtp.py”, line 82, in sess
cint(self.port) or None)
File “/usr/lib64/python2.7/smtplib.py”, line 251, in init
(code, msg) = self.connect(host, port)
File “/usr/lib64/python2.7/smtplib.py”, line 311, in connect
self.sock = self._get_socket(host, port, self.timeout)
File “/usr/lib64/python2.7/smtplib.py”, line 286, in _get_socket
return socket.create_connection((host, port), timeout)
File “/usr/lib64/python2.7/socket.py”, line 571, in create_connection
raise err
error: [Errno 110] Connection timed out