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After successfully installing Exchange Server 2019, the next crucial step is to configure it as your primary email server. This preparation is essential before embarking on the migration of mailboxes from Exchange 2016 to 2019. A series of configurations are necessary to establish an optimal environment for both new and existing mailboxes. In the following sections, we will examine the different roles and additional requirements that need to be implemented to ensure a smooth transition.
Exchange 2016 to 2019 Migration Guides
The mailbox server role plays a pivotal role in hosting user mailboxes and public folders, while also managing Outlook on the Web and generating the Offline Address Book. In contrast, the Edge Transport Server Role enhances mailbox security through robust anti-spam filtering and the formulation of message policies for both incoming and outgoing messages. Notably, you have the flexibility to enable both of these essential roles during the Exchange Server installation process.
When setting up the new server, it’s a prudent practice to establish an administrative mailbox and include it in the Organization Management Server Role Group. This mailbox will be instrumental whenever you need permissions to initiate the migration from Exchange Server 2016 to 2019.
Prior to migrating public folders from legacy Exchange environments, it is essential to establish a dedicated public folder mailbox within Exchange 2019. This approach offers a streamlined solution for preserving the entire public folder hierarchy, eliminating the need for a traditional public folder database as was necessary in earlier Exchange iterations.
Various Exchange client services, such as Outlook Anywhere and Exchange ActiveSync, depend on the proper configuration of certificates to function optimally. If you already possess a TCS certificate, you have the option to seamlessly integrate it with the new Exchange system either by modifying the host names or procuring a fresh certificate from a trusted third-party vendor.
Arbitration mailboxes play a crucial role in preserving essential organizational data, including administrator audit logs and metadata for eDiscovery searches. It is imperative to prioritize the migration of these mailboxes ahead of user mailboxes when transitioning to Exchange 2019. Failure to do so can result in a lack of logged administrator audit cmdlet activities, and eDiscovery searches may remain queued without initiation. Therefore, ensuring the seamless migration of arbitration mailboxes is essential to maintain the integrity of your organization’s data and compliance processes during the transition.
Once you’ve successfully configured your Exchange 2019 server and set up mailboxes, the next step is to ensure that your DNS records are up to date. This involves redirecting DNS connections to point towards your Exchange 2019 server. This update will seamlessly transition host names associated with services such as Outlook on the Web and Autodiscover from Exchange Server 2016 to Exchange Server 2019.
Prior to migration, when a user accesses their mailbox, Exchange Server 2019 initiates a proxy connection request and establishes a connection with the legacy Exchange Server that hosts the mailbox. This process involves two essential steps:
Once you’ve finished configuring Exchange 2019, you can initiate the migration of your primary mailboxes from the previous Exchange version to this new environment. This process involves utilizing the Exchange Admin Center to create a migration batch, which will synchronize the mailboxes and transfer all mailbox folders seamlessly.