Built-in duplicate data administration to make sure availability and resiliency without impacting performance, applying replication and synchronous Energetic storage clusters. This domain has to be the one that belongs for your Corporation, that may be, this domain should be the a single you've registered with Microsoft 365. For more info, https://directadmininstall48509.digiblogbox.com/52477801/the-2-minute-rule-for-postal-smtp-setup