"Alias -ne $null -and (RecipientDisplayType -eq 'ConferenceRoomMailbox' -or RecipientDisplayType -eq 'SyncedConferenceRoomMailbox')" To learn more about room and equipment (resource) mailboxes, see Recipients in Exchange Online. "Alias -ne $null -and ObjectCategory -like 'group'" To learn more about mail-enabled groups, see Recipients in Exchange Online. Includes all distribution groups and mail-enabled security groups in the organization. "Alias -ne $null -and (ObjectCategory -like 'person' -and ObjectClass -eq 'contact')" To learn more about mail contacts, see Recipients in Exchange Online. Includes all mail contacts in the organization. Note that by default, system-related mailboxes like arbitration mailboxes and public folder mailboxes are hidden from address lists. These address lists are described in the following table. In Outlook, the GAL always appears as Global Address List, which likely doesn't match the actual name.īy default, Exchange Online comes with five built-in address lists and one GAL.In Outlook on the web, users see the actual name of the GAL that they're using (for example, Default Global Address List).Depending on the email client, users might not see the actual name of the GAL that they're using: The built-in GAL is named Default Global Address List, and any additional GALs that you create require unique names. To create OABs, see Create an offline address book in Exchange Online. Each GAL needs a corresponding offline address book (OAB) that includes the GAL.If a user is still eligible to see multiple GALs, only the largest GAL is used (the GAL that contains the most recipients).For more information, see Address book policies in Exchange Online. You assign user permissions to GALs by using address book policies (ABPs). The user needs permissions to view the GAL.If a user belongs to multiple GALs, they'll still see only one GAL based on the following conditions: You can only use the Exchange Online PowerShell to create, modify, remove, and update GALs. If you plan on creating additional GALs, consider the following issues: You might need to create multiple GALs if you want to prevent groups of recipients from seeing each other (for example, your organization contains two separate companies). Typically, most organizations have only one GAL, because users can only see and use one GAL in Outlook and Outlook on the web (formerly known as Outlook Web App). For more information, see Hide recipients from address lists.īy default, a new Exchange Online organization has a GAL named Default Global Address List that's the primary repository of all recipients in the organization. You can hide recipients from all address lists and GALs. For more information, see Recipient filters for address lists in Exchange Online PowerShell. Precanned recipient filters or custom recipient filters identify the recipients that are included in address lists and GALs. For more information, see Modify role groups. To use any cmdlets or features that require the Address List role, you need to add the role to a role group. Here's an example of what address lists look like in Outlook 2016:įor procedures related to address lists, see Address list procedures in Exchange Online.īy default, the Address List role isn't assigned to any role groups in Exchange Online. Users in your organization use address lists and the GAL to find recipients for email messages. OABs are used by Outlook clients in cached Exchange mode to provide local access to address lists and GALs for recipient look-ups. Offline address books (OABs): OABs contain address lists and GALs. Exchange Online comes with several built-in address lists, and you can create more based on you organization's needs. You can create additional GALs to separate users by organization or location, but a user can only see and use one GAL.Īddress lists: Address lists are subsets of recipients that are grouped together in one list, which makes them easier to find by users. Global address lists (GALs): The built-in GAL that's automatically created by Exchange Online includes every mail-enabled object in the organization. These are the different types of address lists that are available: When you create or modify recipients in your organization, they're automatically added to the appropriate address lists. Address lists aren't static they're updated dynamically. You can filter by recipient type (for example, mailboxes and mail contacts), recipient properties (for example, Company or State or Province), or both. Address lists are based on recipient filters. An address list is a collection of mail-enabled recipient objects in Exchange Online.
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