Exchange: How to restrict conference room only to specific users?


By default resource mailbox process meeting requests from all users. What if you need to restrict to specific users who can book a resource?

All my investigation pointed to do this:

Set-CalendarProcessing  -Identity resourcename@domain.com  -AllBookInPolicy:$false

Set-Calenderprocessing -Identity resourcename@domain.com -BookInPolicy “username1″,”username2″,”username3”

Now I checked what AllBookInPolicy means and TechNet says “The AllBookInPolicy parameter specifies whether to automatically approve in-policy requests from all users.”.  OK sounds like a correct setting.

Then I checked what BookInPolicy means, “The BookInPolicy parameter specifies a comma-separated list of users who are allowed to submit in-policy meeting requests to the resource mailbox. Any in-policy meeting requests from these users are automatically approved.”

BookInPolicy means the it will automatically approves all meeting requests regardless of availability. That’s NOT good. And these solution didn’t work for me.

So I thought creative and decided to do this:

Set-Mailbox -Identity “resourcename@domain.com” -AcceptMessagesOnlyFrom “username1″,”username2″,”username3”

Ta.Da! That satisfies the only specific users can book the resource by sending meeting requests. And resource mailbox automatically process the meeting requests by accepting or rejecting depending upon availability. <.. Evil Genius laugh ..> 😮

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2 Comments

  1. This can also be done via GUI in Exchange 2010–On the Mailbox–Go to Mail Flow settings–Message Delivery Restrictions–Accept messages from — add the users

    Reply

    1. Yes it can be done in Exchange 2010 in GUI. But Exchange 2013 and above, you have to use PowerShell. Resource mailboxes don’t show “Access Messages from” setting in GUI (admin console).

      Anand

      Reply

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