Company wide vs per user Zoho Mail Add On

Company wide vs per user Zoho Mail Add On

Hi
 
I am evaluating the Zoho Mail add on, with integration set up between CRM (professional) and Mail (free).
 
The integration works perfectly with one CRM user.
 
However, when I add a second CRM user, the Mail add on settings are separate.
 
So, for example, in the Contacts module, the first user can see emails to and from a customer, but the second user cannot see those emails.
 
Is there any way of allowing multiple Zoho users to see all emails?