Login to Max Mail
Login to Max Mail and choose View/Manage my domains. Select the domain for your client.
Choose the Archive Option from the menu.
Email Archive Settings
Select the Journaling option.
Choose to Enable Journaling. You will now need to have allowed access inbound to your Exchange 2013 Client Access Server on port 143 from the GFI Server IP addresses only through your firewall. This is outside the scope of this guide.
Enter in the HostName the public IP address on your Firewall you are NAT to the Exchange Server. Enter the Jourmal Mailbox Credentials. Chose that you only want to Journal Internal messages.
Add the internal domain of the Windows Network if required.
Save your settings, if you have setup everything correctly you will be shown Success!