Resource Mailboxes show availability as Busy

When you create a Resource Mailbox in Exchange 2010, 2013 or Office 365, the default permissions applied to the calendar for the Default user group is ‘AvailabilityOnly’. This means that you can see appointments in the calendar, however you cannot see the subject, attendees, or any further details. When this is being used for a piece of equipment or a meeting room, this configuration appears to be counterproductive.

After all, if you desperately need that piece of equipment (the corporate skipping rope for instance), how do you know who has booked it so you can go and argue with them about who should be able to use it that lunchtime? If you are on the board of a company, how do you know which of your minions have mistakenly booked the meeting room during your monthly board meetings so you can go and give them a verbal warning?

Almost all of my customers ask me these important questions, and the answer is simple. You run the following Powershell command against the Resource Mailbox and set the Default access rights to the more informative ‘Reviewer’ permission. Users can now see the subject, the attendees and the details of the booking.

Set-MailboxFolderPermission alias:\calendar -User Default -AccessRights Reviewer

Powershell. Helping you achieve the unachievable.

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