Using the Address Book in Outlook

The Outlook Adress Book is a collection of address lists that allows you to search for and select names, email addresses, and distribution lists when composing an email.

Types of Address Books

• Global Address List (GAL): The primary directory containing all users and groups associated with NU's mail server.
• Offline Address Book: A downloadable version of the GAL that can be used when Outlook is not connected to the internet.
• Custom Address Lists: Subsets of the GAL, typically organized by specific groups or departments. These lists are dynamically generated based on recipient types or organizational criteria.

Options for Opening the Address Book

• On the Home tab, in the Find group, click Address Book.
• In a new message, click To, Cc, or Bcc to open the Address Book and search your contacts.
• Alternatively, press Ctrl + Shift + B (as in Book) to quickly open the Address Book dialog box.

How to Change Default Address Book

1. On the Home tab, in the Find group, click Address Book.
2. In the Address Book window, click Tools > Options.
3. Under “When opening the address book, show this address list first”, select the address list you want to set as the default.
4. Click OK to save your changes and close the dialog box.

Sources:
Address books in Exchange Online
Open and use the address book in Outlook
Change default address book