Public/Utilities/Analyze-SpamfilterDomains.ps1
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function Analyze-SpamfilterDomains { param ( [Parameter(ValueFromPipeline)] [string]$Domain ) begin { $UsingSpamfilterIO = 0 $NotUsingSpamfilterIO = 0 } process { $MXRecord = Resolve-DnsName -Name $Domain -Type mx -ErrorAction SilentlyContinue | Where-Object Type -eq 'MX' | Sort-Object Preference | Select-Object -First 1 if ($MXRecord.NameExchange -like '*.spamfilter.io') { # Write-Host "$Domain is using Spamfilter.io" -ForegroundColor Green # All good $UsingSpamfilterIO++ } else { Write-Host "$Domain is NOT using Spamfilter.io - Current MX: $($MXRecord.NameExchange)" -ForegroundColor Red $NotUsingSpamfilterIO++ } } end { # Print summary if more than one domain was analyzed if ($UsingSpamfilterIO+$NotUsingSpamfilterIO -le 1) { return } Write-Host "Using Spamfilter.io: $UsingSpamfilterIO" -ForegroundColor Green Write-Host "Not using Spamfilter.io: $NotUsingSpamfilterIO" -ForegroundColor Red Write-Host "Total: $($UsingSpamfilterIO + $NotUsingSpamfilterIO)" -ForegroundColor Yellow } } |