My Problem:
Attempting to send another Exchange 2007 user a request to share calendars results in the error:
“Calendar sharing is not available with the following entries because of permission settings on your network.”
My Solution:
This one was so simple it’s obnoxious. Instead of typing in the user’s name in the To: field, click the To: button and select their Exchange address from the Global Address List. I suspect that I simply allowed auto-complete to fill in the user’s name when I typed the first few letters and it was not actually the Exchange account but another of the user’s email accounts that I had previously named with the same username.
Jon over at jon.netdork.net wrote about a similar issue concerning cached names in Outlook on his blog right here.







