CmdID / PowerShell / Cmdlets / Get
Get-SiteMailbox
Use the Get-SiteMailbox cmdlet to view information about site mailboxes. Exchange PowerShell reference
From the Exchange PowerShell reference 7 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the identity of the site mailbox.-AnrThe Anr parameter specifies a string on which to perform an ambiguous name resolution (ANR) search.-BypassOwnerCheckThe BypassOwnerCheck parameter is used when the account that's running the command isn't a member or owner of the site mailbox.-DeletedSiteMailboxThe DeletedSiteMailbox switch returns site mailboxes that have been marked for pending deletion.-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.-ReadFromDomainControllerThe ReadFromDomainController switch specifies that information should be read from a domain controller in the user's domain.-ResultSizeThe ResultSize parameter specifies the maximum number of results to return.