You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "Address lists" entry in the Mailbox Permissions topic.

Note:
You can't use the EMC to modify a GAL.

This example assigns a new name, FourthCoffee, to the GAL that has the GUID 96d0c505-eba8-4103-ad4f-577a1bf4ad7b.

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Set-GlobalAddressList -Identity 96d0c505-eba8-4103-ad4f-577a1bf4ad7b -Name FourthCoffee

Note:
If you're using precanned conditional filter properties, the value for the IncludedRecipients parameter can't be blank.

This example changes the recipients who will be included in the Fourth Coffee global GAL to those whose company is set to Fourth Coffee.

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Set-GlobalAddressList -Identity Fourth Coffee -RecipientFilter {Company -eq "Fourth Coffee"}

For detailed syntax and parameter information, see Set-GlobalAddressList.

After you make changes to a GAL, you may also want to update the GAL. For detailed steps, see Update a Global Address List.