TMA-M365-DKIM-ENABLED

Ensure DKIM signing is enabled for all Exchange Online domains

SrednjaNivo 1Automatskam365

Opis

DKIM signatures let receivers verify mail really came from your domains and are a prerequisite for an enforcing DMARC policy. Prints the number of domains whose DKIM signing configuration is not enabled (expected 0). Requires an already-connected Exchange Online session: Install-Module ExchangeOnlineManagement; Connect-ExchangeOnline (View-Only Organization Management is sufficient). The audit throws if no session exists.

Kako se proverava

Metod provere: Komanda ljuske

shell

$ErrorActionPreference = 'Stop'; if (-not (Get-Command Get-ConnectionInformation -ErrorAction SilentlyContinue) -or -not (Get-ConnectionInformation)) { throw 'Not connected: run Connect-ExchangeOnline first' }; $bad = @(Get-DkimSigningConfig -ErrorAction Stop | Where-Object { $_.Enabled -ne $true }); $bad.Count

Očekivani izlaz: 0

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Publish the selector1/selector2 CNAME records shown by Get-DkimSigningConfig -Identity <domain> | Format-List Selector*CNAME, then New-DkimSigningConfig -DomainName <domain> -Enabled $true or Set-DkimSigningConfig -Identity <domain> -Enabled $true.

Svojstva

Operativni sistemi: Bilo koji
Oznake: m365mail-auth
Referenca: CIS Microsoft 365 Foundations Benchmark v7.0.0 - Exchange Online / DKIM (verify section number for your release)

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target m365