Information
This policy setting controls whether Outlook downloads files attached to Internet Calendar appointments.
The recommended state for this setting is: Disabled
Files attached to Internet Calendar appointments could contain malicious code that could be used to compromise a computer. By default, Outlook does not download attachments when retrieving Internet Calendar appointments.
Solution
To establish the recommended state via configuration profiles, set the following Settings Catalog path to Disabled :
Microsoft Outlook 2016\Account Settings\Internet Calendars\Automatically download attachments
Impact:
Disabling this setting enforces the default configuration in Outlook, and therefore is unlikely to cause usability issues for most users.