Getting error while adding Domain

Getting error while adding Domain

Hello,

1. I have a website alredy, Now I want to create Business Mail id For my website, I need to add domain in zoho control pane ?


2. I tried to add domain also, But it showing Error (This Operation has been restricted. Please contact support-as@zohocorp.com for further details )


3. Will I get full access in zoho Mail after Creating Mail Id in zoho , like if anyone Subscribed in my website will I get Notfication or Mail ?


Please Respond point wise, thank you

Waiting For Your Quick Response :)