Setting up zoho mail

Setting up zoho mail

Greetings,
 
I tried to setup zoho mail yesterday and it did not work and created a big mess with what I am currently using.
 
I use and isp for my email through my own domain.
I setup gmail to read my mail in and to send because my regualr job liits the ports I can use and one of them is what my isp uses.
 
I want to move from google to zoho but need some instructions about how to do it.  I want to drop gmail and use zoho to read and write emails through my own domain.
 
Clear as mud?
 
Any help?
 
Hari om.
 
paul