I just connected my domain to Zoho mail Free edition in order to test the App and then upgrade to Paid, and migrate my staff to Zoho. 

so I created a Dummy employee email account and only gave it access to the Email app, withing my organization. 

(loged on to the email) to test for my self and notice at the upper left corner next to the logo, all the zoho apps, and what's funny is that I was able to create a complete Organization with Zoho.

this is supose to be an email that I created withing my organization to give access to an employee to my email service so how is it that they can create organizations with that same email address 

maybe I did something wrong, I need to remove the zoho app list that is in the "upper left corner" of the screen I don't need my employees creating a new organization, CRM, Invoice, Etc. 

is Zoho something that I can use and manage, I'm currently Using office 365 but it i to expensive. my employees only have access to the email interface not other Microsoft products  if I can't just give my employees access to an email interface without pushing the Zoho apps to them maybe this is not for me.

I love your products there is nothing in the market like Zoho but I have never seen this in a Business email account