Our network utilizes Outlook 2010. Within Outlook I've created three different contact lists, which allows me to send messages to specific groups of people. If I right click on any of my created lists and select properties, the EMail List Properties box appears. The properties box includes 5 tabs across the top named: Outlook Address Book, General, Permissions, Home Page, and Synchronization. I've opened the tab named Outlook Address Book and checked the box titled "Show this folder as an e-mail Address Book." After checking this box, whenever I hit the To:, CC:, or BCC: buttons in my message window the names of my three address books are included with the names of any other list of available address books I can select from.

However, an issue arises when I share these three address books with other users on the network. They receive and accept the shared contact lists with no problem, and the three address books appear as they should in their list of contacts. BUT, when the other user right clicks any of the three contact lists on their own PC and selects Properties, their EMail List Properties dialogue box does not include the tab named Outlook Address Book. As a result, they are unable to check the box named "Show this folder as an e-mail Address Book." Consequently, whenever they compose a message and hit the To: button, the drop down menu of available address books does not include the three I've shared with them.

Any ideas what I am doing wrong or why their EMail List Properties dialogue box does not include the tab called Outlook Address Book? I changed all the folder permissions to include myself and those I've shared the address books with as Owner, but it doesn't make any difference.