pls. while a new version of the Firewall Firmware is released update the Addons, like the Outlook Add-in to the latest version to download the Add-in from the User Portal and install it with the current MS Office version, because i think it is difficult to find the latest version of the Add-in on your website and the MYSophos account don´t list it, i have searched 3 Month for the Add-in which worked with MS Office 2016 and found it than there https://www.sophos.com/en-us/support/downloads/email/sophos-outlook-add-in.aspx