How use API Zoho mails

How use API Zoho mails

Hello

I am trying to implement a zoho mail account, with mydomain.com through Sap Hana Cloud, using the zoho mail API, and I need some parameters that I can not get. In the first place, what would be
URL, which allows me to use an email account in zoho already configured as outgoing mail.
And which port is used.

regards