Search for Blocked or Trusted Senders and Domains in Exchange Online

Search-SendersAndDomains.ps1

function Search-BlockedSendersAndDomains {
    <#
        .DESCRIPTION
        Search by keyword in a user's blocked senders and domains.
	Wildcards are automatically added before and after the search string.
	
        .PARAMETER Identity
        Email address of the user. "[email protected]".

        .PARAMETER Term
        Keyword search string. "example.com"

        .INPUTS
        A pipeline of user identities might work.

        .OUTPUTS
        System.String. 

        .EXAMPLE
        PS> Search-BlockedSendersAndDomains -Identity "[email protected]" -Term "baz"
        [email protected]

        .EXAMPLE
        PS> Search-BlockedSendersAndDomains "[email protected]" "noreply"
        [email protected]
	
	.EXAMPLE
	PS> $users = @("[email protected]", "[email protected]")
	PS> $users | Search-BlockedSendersAndDomains -Term "bubliz"
	[email protected]
	[email protected]
    #>	
	param(
		[Parameter(Mandatory, ValueFromPipeline, Position=0)]
		[string]$Identity,
		
		[Parameter(Mandatory, Position=1)]
		[string]$Term
	)

	Process {
	Get-MailboxJunkEmailConfiguration -Identity "$Identity"  | 
  	  Select -ExpandProperty BlockedSendersAndDomains | 
	    Where-Object {$_ -like "*$Term*"} |
	      Sort-Object
        }

}

function Search-TrustedSendersAndDomains {
    <#
        .DESCRIPTION
        Search by keyword in a user's Trusted senders and domains.
	Wildcards are automatically added before and after the search string.
	
        .PARAMETER Identity
        Email address of the user. "[email protected]".

        .PARAMETER Term
        Keyword search string. "example.com"

        .INPUTS
        A pipeline of user identities might work.
	Use the -Term parameter

        .OUTPUTS
        System.String. 

        .EXAMPLE
        PS> Search-TrustedSendersAndDomains -Identity "[email protected]" -Term "baz"
        [email protected]

        .EXAMPLE
        PS> Search-TrustedSendersAndDomains "[email protected]" "noreply"
        [email protected]

	.EXAMPLE
	PS> $users = @("[email protected], "[email protected]")
	PS> $users | Search-TrustedSendersAndDomains -Term "bubliz"
	[email protected]
	[email protected]
    #>
	param(
		[Parameter(Mandatory, ValueFromPipeline, Position=0)]
		[string]$Identity,
		
		[Parameter(Mandatory, Position=1)]
		[string]$Term
	)

	Process {
	Get-MailboxJunkEmailConfiguration -Identity "$Identity"  | 
  	  Select -ExpandProperty TrustedSendersAndDomains | 
	    Where-Object {$_ -like "*$Term*"} |
	      Sort-Object
        }
}