Get-DKIMRecord.ps1
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Script
function Get-DKIMRecord {
<#
.SYNOPSIS
Get DKIM Record for a domain.
.DESCRIPTION
This function uses Resolve-DNSName to get the DKIM Record for a given domain. Objects with a DomainName property,
such as returned by Get-AcceptedDomain, can be piped to this function. The function defaults to "selector1" as this
is typically used with Exchange Online.
.EXAMPLE
Get-AcceptedDomain | Get-DKIMRecord
This example gets DKIM records for all domains returned by Get-AcceptedDomain.
#>
[CmdletBinding(HelpUri = 'https://ntsystems.it/PowerShell/TAK/Get-DKIMRecord/')]
param (
# Specify the Domain name to use in the query.
[Parameter(Mandatory = $true,
ValueFromPipelineByPropertyName = $true,
ValueFromPipeline = $true)]
[string]
$DomainName,
# Specify a selector name to use in the query.
[Parameter()]
[string[]]
$Selector,
# Specify a DNS server to query.
[Parameter()]
[string]
$Server
)
process {
foreach ($name in $Selector) {
$params = @{
Name = "$name._domainkey.$DomainName"
ErrorAction = "SilentlyContinue"
}
if ($Server) { $params.Add("Server", $Server) }
$dnsTxt = Resolve-DnsName @params -Type TXT | Where-Object Type -eq TXT
$dnsTxt | Select-Object @{Name = "DKIM"; Expression = { "$DomainName`:$s" } }, @{Name = "Record"; Expression = { $_.Strings } }
}
}
}
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