Retention Yammer

<# .SYNOPSIS Retention Policy Yammer 7 Jaar .DESCRIPTION 7-year retention for Yammer messages .NOTES NL Baseline v2.0 #> #Requires -Version 5.1 #Requires -Modules ExchangeOnlineManagement [CmdletBinding()] param([switch]$Monitoring, [switch]$Remediation, [switch]$Revert, [switch]$WhatIf) $ErrorActionPreference = 'Stop' $script:RetentionDays = 2555 $script:RetentionYears = 7 Write-Host "`n========================================" -ForegroundColor Cyan Write-Host "Retention Policy Yammer 7 Jaar" -ForegroundColor Cyan Write-Host "========================================`n" -ForegroundColor Cyan function Invoke-Monitoring { try { Connect-IPPSSession -ShowBanner:$false -ErrorAction Stop $policies = Get-RetentionCompliancePolicy | Where-Object { $_.YammerCommunityLocation -ne $null -or $_.YammerUserLocation -ne $null } $result = @{ isCompliant = $false; total = $policies.Count; compliant = 0 } if ($policies.Count -eq 0) { Write-Host " No Yammer policies" -ForegroundColor Red } else { foreach ($p in $policies) { $rules = Get-RetentionComplianceRule -Policy $p.Name -ErrorAction SilentlyContinue $maxD = 0 foreach ($rule in $rules) { if ($rule.RetentionDuration) { $d = [int]$rule.RetentionDuration if ($d -gt $maxD) { $maxD = $d } if ($d -ge $script:RetentionDays -and $p.Enabled) { $result.compliant++ $result.isCompliant = $true } } } Write-Host " $($p.Name): $maxD days" -ForegroundColor $( if ($maxD -ge $script:RetentionDays) { "Green" } else { "Yellow" } ) } } Write-Host "`n Total: $($result.total) | Compliant: $($result.compliant)" -ForegroundColor Cyan if ($result.isCompliant) { Write-Host "`n[OK] COMPLIANT" -ForegroundColor Green exit 0 } else { Write-Host "`n[FAIL] NON-COMPLIANT" -ForegroundColor Red exit 1 } } catch { Write-Host "ERROR: $_" -ForegroundColor Red exit 2 } } function Invoke-Remediation { try { Connect-IPPSSession -ShowBanner:$false -ErrorAction Stop $n = "Yammer $script:RetentionYears Year Retention" $p = New-RetentionCompliancePolicy -Name $n -Comment "NL Baseline" ` -YammerCommunityLocation All -YammerUserLocation All -Enabled $true -ErrorAction Stop $r = New-RetentionComplianceRule -Name "$n - Rule" -Policy $n ` -RetentionDuration $script:RetentionDays -RetentionComplianceAction Keep -ErrorAction Stop Write-Host "[OK] Policy created" -ForegroundColor Green exit 0 } catch { Write-Host "ERROR: $_" -ForegroundColor Red exit 2 } } function Invoke-Revert { try { Connect-IPPSSession -ShowBanner:$false -ErrorAction Stop $n = "Yammer $script:RetentionYears Year Retention" $p = Get-RetentionCompliancePolicy -Identity $n -ErrorAction SilentlyContinue if ($p) { Remove-RetentionCompliancePolicy -Identity $n -Confirm:$false -ErrorAction Stop Write-Host "Removed" -ForegroundColor Yellow } exit 0 } catch { Write-Host "ERROR: $_" -ForegroundColor Red exit 2 } } try { if ($Revert) { Invoke-Revert } elseif ($Monitoring) { Invoke-Monitoring } elseif ($Remediation) { Invoke-Remediation } else { Write-Host "Use: -Monitoring | -Remediation | -Revert" -ForegroundColor Yellow } } catch { throw } finally { Write-Host "`n========================================`n" -ForegroundColor Cyan }