error in sending email using smtp client on server

error in sending email using smtp client on server

i have domain in godady and i am using zoho email service. it is working ok in localhost but throwing error on server.

 my code is below:
 message.BodyEncoding = System.Text.Encoding.UTF8;
            message.IsBodyHtml = true;
           
            SmtpClient client = new SmtpClient("smtp.zoho.com", 465); 
           
            System.Net.NetworkCredential basicCredential1 = new
            System.Net.NetworkCredential(" admin@xxx.in", "xxx");
            client.EnableSsl = true;
            client.UseDefaultCredentials = true;
            client.Credentials = basicCredential1;
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            client.Send(message);

i am using port 587 then its working ok in localhost.. plz help me out for server.