You can restore a missing hosting server by using the Installation /m:RecoverServer switch in Microsoft Return Server 2013. Online Exchange Recovery Will not of the settings for a computer operating Exchange 2013 are saved in Active Directory. The /m:RecoverServer change rebuilds an Return server with the same name by using the settings and other details stored in Effective Directory.One Time Exchange Recovery
Recuperating a lost Return server is often achieved by using new hardware. However, you can also use an current server. Online OST Recovery
This topic reveals you how to restore a lost Return 2013 hosting server that isn't a member of a database accessibility group (DAG). For specific steps about how to restore a server that was a participant of a DAG, see Recover a Database Accessibility Group Member Server. One time OST Recovery