Contacts and Calendat in Outlook Client

Contacts and Calendat in Outlook Client

I am new to Zoho. 
I am in the process of migrating from an exchange server to zoho.  Small org, only 5 mailboxes.
I just added my zoho domain account to Outlook using the IMAP option... But I do not see any Calendar or Contacts associated with that account.  Does anyone know why?
I need contacts and Calendars to sync with Outlook and mobile devices.

Chris