Connection could not be established with host smtp.zoho.com

Connection could not be established with host smtp.zoho.com

I cannot be able to send emails from my server. If i try google smtp it works fine. At the moment i have not setup any firewalls.

I am trying the following configuration with TLS
Outgoing Server Name:  smtp.zoho.com
Port:  587
Security Type:  TLS 

A LSO 

ssl
Outgoing Server Name: smtp.zoho.com
Port: 465
Security Type: SSL 

i have also also specified the username and password.