- Exchange 2016 offline address book update#
- Exchange 2016 offline address book full#
- Exchange 2016 offline address book download#
Shadow distribution is described in detail in the next section. To create additional organization mailboxes, see Use the Exchange Management Shell to create organization mailboxes.
Exchange 2016 offline address book download#
You configure an organization mailbox in each site, and you configure shadow distribution for an OAB to help prevent cross-site OAB download requests by clients (likely over slow WAN links). Typically, shadow copies are only required in multi-site Exchange organizations.
Exchange 2016 offline address book full#
All copies of the OAB have the same unique identifier, so full a OAB download isn't required when a client is proxied to a different organization mailbox location. You can configure an OAB to allow a read-only copy (also known as a shadow copy) to be distributed to all organization mailboxes in the organization (also known as shadow distribution). So, a full OAB download was required whenever a client was proxied to a different organization mailbox location. If you configured an OAB with multiple organization mailboxes, each copy of the OAB had a different unique identifier. You can configure multiple OABs to be generated by the same organization mailbox, but you can't configure an OAB to be generated by more than one organization mailbox.
Exchange 2016 offline address book update#
Exchange Server contains the improvements to OAB generation that were introduced in Exchange 2013 Cumulative Update 7 (CU7): You can create additional organization mailboxes to generate OABs.
By default, this organization mailbox is responsible for generating all OABs (the first OAB named Default Offline Address Book, and any new OABs that you create). The arbitration mailbox named SystemMailbox is the first organization mailbox in your organization. To manually update an OAB, see Use the Exchange Management Shell to update offline address books. To change the OAB generation schedule, see Change the offline address book generation schedule in Exchange Server. An arbitration mailbox with this capability is also known as an organization mailbox.īy default, OABs are generated every 8 hours. OAB generation occurs in a designated arbitration mailbox that has the OrganizationCapabilityOABGen value for the PersistedCapability property. OAB generation is controlled by the mailbox assistant named OABGeneratorAssistant that runs under the Microsoft Exchange Mailbox Assistants service. To learn more about address lists, see Address lists in Exchange Server. These mailboxes can use database availability groups (DAGs) to help prevent a single point of failure for OAB generation and downloads.įor OAB procedures, see Procedures for offline address books in Exchange Server. OAB generation occurs in a designated arbitration mailbox (not on a designated OAB generation server).
This allows OAB generation to run or pause based on the workload of the server (workload management). All versions of Outlook that are supported by Exchange fully support OAB version 4.Ī mailbox assistant (not the Microsoft Exchange System Attendant service) is the process that's responsible for generating OABs. This version of the OAB is Unicode, and allows clients to receive differential updates, instead of always using full downloads. More control over the OAB distribution points. Support for more concurrent downloads by client computers. Only web-based distribution is supported (public folder distribution is no longer available). These changes were introduced in Exchange 2013: OABs in Exchange 2013 and later are improved over OABs in Exchange 2010. This OAB is also the default OAB, which means it's the OAB that's used by mailboxes and mailbox databases that don't have an OAB assigned to them. You can configure which address lists are included in an OAB, access to specific OABs, how frequently the OABs are generated, and where the OABs are distributed from.īy default, a new installation of Exchange creates an OAB named Default Offline Address Book on the server. OABs are the only option for Outlook clients that are disconnected from the Exchange server, but they're also queried first by connected Outlook clients as a way to help reduce the workload on Exchange servers. OABs are used for address book queries by Outlook clients that are configured in cached Exchange mode. An offline address book (OAB) is a local copy of an address list collection.
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