Override published sync interval

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\outlook\options\webcal

Value name: ignorettl

Enabled: ignorettl = 1

Disabled: ignorettl = 0

Description

By default, Outlook follows the sync interval specified by the Internet Calendar publisher and Internet Calendar subscriptions will not be sync'd more often than allowed by the Internet Calendar publisher. This setting allows you to prevent users from overriding the sync interval published by Internet Calendar publishers.