Ensure 'Retain deleted items for the specified number of days' is set to '14'

MoyenneNiveau 1Automatiséeexchange

Description

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.

Méthode de vérification

Méthode d'audit: Commande shell

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

Sortie attendue: 0

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Set-MailboxDatabase '<database>' -DeletedItemRetention 14

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: exchangemailboxretention
Référence: 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'

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target exchange