Follow these steps to create a no-reply email address in Exchange Server/Microsoft 365 ... expand the Recipients section, select Mailboxes and click on Add a shared mailbox.

In the Cached Exchange Mode, a copy of your mailbox is saved on your computer. The copy offers prompt access to your data and is often updated with the server that runs Microsoft Exchange.

so hybrid configurations and customers with cloud archives for on-premises mailboxes must run CU15 to be supported." The release means CU13 is out of support, and coexistence with Exchange Server ...