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

СреднийУровень 1Автоматическаяexchange

Описание

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.

Как проверяется

Метод проверки: Команда оболочки

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

Ожидаемый вывод: 0

Как исправляется

Метод исправления: Рекомендация или патч инфраструктуры

Set-MailboxDatabase '<database>' -DeletedItemRetention 14

Свойства

Операционные системы: Любая
Теги: exchangemailboxretention
Источник: 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'

Проверить этот хост

Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.

shell

tmaegis scan --target exchange