Issue while using zoho smtp in C#

Issue while using zoho smtp in C#

Hi all,
I tried to use zoho smtp in c# with the following details:
host:   smtp.zoho.com
port: 465, 587 and 25(tried all three)
Enable SSL : true

And I've supplied my zoho mail id and password

Still, an error is shown saying Message sending failed.

Is there a way to send mails in C# using zoho smtp?

Deepak