Get-EXORecipientPermission

Exchange Online Management: Gets SendAs permissions configured for users

Script

#Requires -Version 5.1

[CmdletBinding()]
Param(
    [string]$Identity,
    [string]$Trustee,
    [int]$ResultSize = 1000
)

Process {
    try {
        [hashtable]$cmdArgs = @{'ErrorAction' = 'Stop'; 'ResultSize' = $ResultSize}

        if (-not [System.String]::IsNullOrWhiteSpace($Identity)) {
            $cmdArgs.Add('Identity', $Identity)
        }
        if ($PSBoundParameters.ContainsKey('Trustee')) {
            $cmdArgs.Add('Trustee', $Trustee)
        }

        $result = Get-EXORecipientPermission @cmdArgs
        if ($null -eq $result -or $result.Count -eq 0) {
            Write-Output "No recipient permissions found"
            return
        }
        foreach ($item in $result) {
            $item | Add-Member -NotePropertyName Timestamp -NotePropertyValue (Get-Date -Format "yyyy-MM-dd HH:mm:ss") -PassThru -Force
        }
    }
    catch { throw }
}

Customize

Identity string

Name, Alias or SamAccountName of the target recipient

Trustee string

Filters results by the user or group to whom the permission is granted

ResultSize int

Maximum number of results to return