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My boss recently moved to a new job leaving me trying to figure out how to administer our Exchange 2010 server. I have set up internet calendar publishing for our users and it works beautifully. I found the place to subscribe to an internet calendar through OWA and input the webcal address. This also works, however it only seems to update every 3 hours and I don't know where to change this interval. Is it something that each user sets for the calendar or is it a global setting? Three hours is a little too pokey for my taste. I've been Googling all day but haven't found any solutions.

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