Commands › Exchange Online

Enable-SafeAttachmentRule

Exchange Online ExchangeOnlineManagement Enable-*

Enable safe attachment rules in your cloud-based organization. This cmdlet is also responsible for disabling complete Safe Attachments policies in the admin center, which consist of the safe attachment rule and the corresponding assigned safe attachment policy in PowerShell.

Quick start script

# Enable-SafeAttachmentRule — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org

# 2. Capture the current state first — you cannot roll back what you never recorded
$before = Get-SafeAttachmentRule
$before | Format-List

# 3. Make the change (dry run first)
Enable-SafeAttachmentRule -Identity <RuleIdParameter> -WhatIf
Enable-SafeAttachmentRule -Identity <RuleIdParameter>

# 4. Verify and diff
$after = Get-SafeAttachmentRule
Compare-Object ($before | Out-String) ($after | Out-String)

Syntax

Enable-SafeAttachmentRule [-Identity] <RuleIdParameter>
 [-Confirm]
 [-WhatIf]
 [<CommonParameters>]

Parameters (3)

Parameter	Type	Required	What it controls
-Identity	RuleIdParameter	yes	The Identity parameter specifies the disabled safe attachment rule that you want to enable.
-Confirm	SwitchParameter		The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on whether the cmdlet requires confirmation before proceeding.
-WhatIf	SwitchParameter		The WhatIf switch shows what the command does without making any changes. You don't need to specify a value with this switch.

Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.