Microsoft 365 Messaging Administrator Certification Transition

To minimize the likelihood of an email message being lost if a member of DAG1 fails, you should configure the SafetyNetHoldTime attribute. Safety Net is a feature in Exchange that ensures email messages are retained for a specified period, allowing the system to recover messages in case of a failure. Adjusting the SafetyNetHoldTime to match or exceed the replay lag time ensures that copies of messages will be held long enough to cover any delays in replaying the logs from the lagged database copy, thus minimizing data loss.

To upgrade to Exchange Server 2019, the minimum supported Active Directory forest functional level must be Windows Server 2012 R2 or higher. Since the current forest functional level is Windows Server 2008 R2, raising it to Windows Server 2012 R2 will meet the requirements for the upgrade.

To verify whether the Active Directory environment is prepared for deploying Microsoft Exchange Server 2019, you can review the Exchange Setup log to check for successful completion of the prerequisite steps, and use ADSI Edit to verify the CN=ms-Exch-Schema-Version-Pt rangeUpper attribute value. These methods together confirm that the necessary schema changes and preparations have been applied successfully.

To ensure a user named User1 can install Exchange Server 2019 on EX05 while adhering to the principle of least privilege, two steps are necessary. First, adding User1 to the Delegated Setup group ensures that they can run Exchange setup commands without granting broad administrative privileges. Second, running the command E:\Setup.exe /IAcceptExchangeServerLicenseTerms /NewProvisionedServer:EX05 on EX01 provisions the new Exchange server (EX05). This command must be executed by someone who has Organizational Management permissions, but it enables User1, a member of the Delegated Setup group, to install Exchange on EX05. These two actions together limit User1's permissions to the minimum required to perform the installation.