Use the Get-IPAllowListConfig cmdlet to view the configuration information for the IP Allow list that's used by the Connection Filtering agent on Edge Transport servers.
For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax (https://docs.microsoft.com/powershell/exchange/exchange-server/exchange-cmdlet-syntax).
Get-IPAllowListConfig [-DomainController <Fqdn>] [<CommonParameters>]
On Edge Transport servers, the Connection Filtering agent acts on the IP address of the incoming SMTP connection to determine what action, if any, to take on an incoming message.
On Edge Transport servers, you need to be a member of the local Administrators group to run this cmdlet.
Get-IPAllowListConfig | Format-List
This example returns detailed information about the IP Allow list configuration on the local Edge Transport server.
The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example, dc01.contoso.com.
The DomainController parameter isn't supported on Edge Transport servers. An Edge Transport server uses the local instance of Active Directory Lightweight Directory Services (AD LDS) to read and write data.
|Accept pipeline input:||False|
|Accept wildcard characters:||False|
|Applies to:||Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019|
To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn't accept input data.
To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn't return data.