This should be an easy one, but I'm stumped. We are currently running Exchange 2010 SP2. I have created a shared mailbox via powershell, added it to the correct ABP, and set the full access / send as permissions appropriately. However, when a user with full access attempts to share the calendar on this multi user account, the option is greyed out. I cannot figure this out!
I've even created a normal account (non shared mailbox, simply a "user mailbox") and attempted to give the same full access permission. Testing shows the same thing occurs - the option for sharing the calendar is greyed out...
I feel like I'm missing something really simple, it's frustrating!
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