Recipient Preview Filter for particular recipient container

Just quick post. You have dynamic distribution group, you need to scope it for special container and you need to preview recipients for that DDL just inside the container. Solution is easy. Use Where condition and with definition of recipient container in for of distinguished name:

 


$x = Get-DynamicDistributionGroup mailNY
GetRrecipient -RecipientPreviewFilter $x.recipientfilter |Where {$_.Distinguishedname -like "*OU=subou,OU=ou,DC=domain,DC=suffix"} |select *city*,distinguishedname


Easy? Yes, but I always forgot how I did it, so that is why I posted it.

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SPF validation Powershell script

I have created a script to validate SPF records of your domains against kitterman´s WEB site.

• Import functions Get-DNS and Validate-SPF into your Powershell profile or Powershell session.
• Use is very easy. run Validate-SPF <domainname>, it returns if SPF is valid (PASS), invalid (FAIL) or not present (OK) and kittermann´s message as an object.

Update:Requires Windows 8 and newer (Thanks Wojciech)


function Validate-SPF ($domain){
$y = $null
$y = get-dns $domain | where {$_.strings -like "*spf1*"} | select name,strings
$res = $null
$res = "" | select domain,result,message,txt
$res.domain = $domain
if ($y -ne $null){
Write-Host "SPF present: $($y.strings). Checking validity ..." -ForegroundColor Green
$web = Invoke-WebRequest -Uri http://www.kitterman.com/spf/validate.html
$web.forms[0].fields.domain = "$($y.name)"
$result = Invoke-RestMethod http://www.kitterman.com/getspf2.py -Body $web.forms[0].fields
$message = $result.replace("`r`n","--")
$res.message = $result
$res.txt = $message
if ($message -like "*passed*"){
$res.result = "Passed"
} else {
$res.result = "FAIL"}
} else {
$res.message = "N/A"
$res.result = "OK"
$res.txt = "N/A"
}
return $res
}


function Get-DNS ([String]$domain){
resolve-dnsname $domain -type MX
resolve-dnsname $domain -type TXT

}