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While I do not have the exact answer, I do believe you should into the two following commands:<br />
<br />
Get-MailboxCalendarSetting<wbr />s<br />
Set-MailboxCalendarSetting<wbr />s<br />
<br />
Viewing the parameters of these commands may allow you to change the permission level of all the mailboxes at once. Good luck!
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While I do not have the exact answer, I do believe you should into the two following commands:

Get-MailboxCalendarSettings
Set-MailboxCalendarSettings

Viewing the parameters of these commands may allow you to change the permission level of all the mailboxes at once. Good luck!

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Hi <br />
<br />
Thanks for your help but I need to be able to do this on an individual mailbox basis. &nbsp;Any ideas<br />
<br />
Any help would be appreciated
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Hi

Thanks for your help but I need to be able to do this on an individual mailbox basis.  Any ideas

Any help would be appreciated

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Works perfectly thank you so much
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<div class="content wysiwyg-content">
Hi<br />
<br />
We frequently have users in Exchange 2007 who need access to other users calendars. &nbsp;We want to be able to set this permission on the server, as opposed to using the permissions tab in Outlook. &nbsp;Is there a command in the Exchange Management Shell I need to use to do this, because right now if we give someone access to another users calendar they are able to open up the other users inbox as well. <br />
Any help would be appreciated.<br />
<br />
thank you<br />
Scott Masur<br />
smasur3@psych.uic.edu
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Hi

We frequently have users in Exchange 2007 who need access to other users calendars.  We want to be able to set this permission on the server, as opposed to using the permissions tab in Outlook.  Is there a command in the Exchange Management Shell I need to use to do this, because right now if we give someone access to another users calendar they are able to open up the other users inbox as well. 
Any help would be appreciated.

thank you
Scott Masur
smasur3@psych.uic.edu

Exchange Calendar Permissions

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.