Microsoft Exchange Server
TMA-EXCHANGE-2.1.2
Ensure 'Retain deleted items for the specified number of days' is set to '14'
Descripción
This policy setting specifies how long deleted messages are retained before they are permanently removed from the database. Prints the number of mailbox databases whose DeletedItemRetention is less than 14 days (expected 0). Run on a Mailbox server (organization-wide objects are read from AD). Run from an Exchange Management Shell or after `Add-PSSnapin Microsoft.Exchange.Management.PowerShell.SnapIn`; the audit loads the snap-in itself when Get-ExchangeServer is missing and fails if it cannot.
Cómo se verifica
Método de auditoría: Comando de shell
$ErrorActionPreference = 'Stop'; if (-not (Get-Command Get-ExchangeServer -ErrorAction SilentlyContinue)) { Add-PSSnapin Microsoft.Exchange.Management.PowerShell.SnapIn -ErrorAction Stop }; if (-not (Get-Command Get-ExchangeServer -ErrorAction SilentlyContinue)) { throw 'Exchange Management Shell cmdlets are not available' }; $ts = { param($v) $s = "$v"; if (-not $s -or $s -eq 'Unlimited') { $null } else { [timespan]$s } }; $bad = @(Get-MailboxDatabase -ErrorAction Stop | Where-Object { $t = & $ts $_.DeletedItemRetention; $null -eq $t -or $t.TotalDays -lt 14 }); $bad.Count- Salida esperada
0
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
Set-MailboxDatabase '<database>' -DeletedItemRetention 14
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- exchangemailboxretention
- Referencia
- CIS Microsoft Exchange Server 2019 Benchmark v1.0.1 - 2.1.2 Ensure 'Retain deleted items for the specified number of days' is set to '14'
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
tmaegis scan --target exchange