Zoho TeamInbox lets you add and manage contacts from within the application. You can add any number of contacts and input their details. These contacts will be auto-suggested when you compose messages.
To add a new contact
In your Zoho TeamInbox account, click the Contacts icon from the top of the left pane. Here you can view all your contacts listed under their specific inboxes.
Click the Add icon to add a new contact.
Enter the contact details.
Click Save.
You can edit the details of a contact by clicking on the contact.