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I have identified the problem. &nbsp;I cannot say whether this is a network security issue or if this is how Exchange is designed to work, but I am able to share Calendars only with individuals, not with groups. &nbsp;I had originally shared the Calendar with an outlook group which didn't work, however when I un-collapsed the group so it showed all individuals in the group, it worked.
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I have identified the problem.  I cannot say whether this is a network security issue or if this is how Exchange is designed to work, but I am able to share Calendars only with individuals, not with groups.  I had originally shared the Calendar with an outlook group which didn't work, however when I un-collapsed the group so it showed all individuals in the group, it worked.

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If I try to share my default Calendar in Outlook 2007 an e-mail appears with the option to &quot;Allow recipient to view your Calendar&quot;. &nbsp;When I send the e-mail the reciepient can open the Calendar and view it.<br />
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If I try to share a custom Calendar, the e-mail is missing the option to &quot;Allow recipient to view your Calendar&quot; and when the recipient recieves the e-mail and tries to view the Calendar, they get the error &quot;The folder you selected is not available&quot;. &nbsp;I have verified that the permissions are correct (they are listed as a reviewer with view only permissions&quot;.
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If I try to share my default Calendar in Outlook 2007 an e-mail appears with the option to "Allow recipient to view your Calendar".  When I send the e-mail the reciepient can open the Calendar and view it.

If I try to share a custom Calendar, the e-mail is missing the option to "Allow recipient to view your Calendar" and when the recipient recieves the e-mail and tries to view the Calendar, they get the error "The folder you selected is not available".  I have verified that the permissions are correct (they are listed as a reviewer with view only permissions".

Outlook 2007 custom Calendar sharing does not work

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.