I´ve been tried to set up this* configurations at cPanel, but I´m not sure if I did everything right. Can you check for me, please?

* https://www.zoho.com/mail/help/adminconsole/cpanel-mx.html

* https://www.zoho.com/mail/help/adminconsole/configure-email-delivery.html#alink1

May I have to add 50 mx3.zoho.com for cPanel too? Because I did not.

Thanks a lot.