Details
This policy setting allows you to determine whether or not you want to include Internet Calendar integration in Outlook. The Internet Calendar feature in Outlook enables users to publish calendars online (using the webcal:// protocol) and subscribe to calendars that others have published. When users subscribe to an Internet calendar, Outlook queries the calendar at regular intervals and downloads any changes as they are posted.
If you enable this policy setting, all Internet calendar functionality in Outlook is disabled.
If you disable or do not configure this policy setting, Outlook allows users to subscribe to Internet calendars. The recommended state for this setting is: Enabled.
Rationale:
The Internet Calendar feature in Outlook enables users to publish calendars online (using the webcal:// protocol) and subscribe to calendars that others have published. When users subscribe to an Internet calendar, Outlook queries the calendar at regular intervals and downloads any changes as they are posted.
By default, Outlook allows users to subscribe to Internet calendars. If your organization has policies that govern the use of external resources such as Internet calendars, this feature might enable users to violate those policies.
Solution
To implement the recommended configuration state, set the following Group Policy setting to Enabled.
User ConfigurationAdministrative TemplatesMicrosoft Outlook 2013Account SettingsInternet CalendarsDo not include Internet Calendar integration in Outlook
Impact:
Enabling this setting can cause disruptions for users who subscribe to Internet calendars from within Outlook. These users will have to use another method to access Internet calendar data.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Windows.