Commands › Exchange Online

New-RetentionPolicy

Exchange Online ExchangeOnlineManagement New-*

Create a retention policy.

Quick start script

# New-RetentionPolicy — 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-RetentionPolicy
$before | Format-List

# 3. Make the change (dry run first)
New-RetentionPolicy -Name <String> -WhatIf
New-RetentionPolicy -Name <String>

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

Syntax

New-RetentionPolicy [-Name] <String>
 [-Confirm]
 [-DomainController <Fqdn>]
 [-IsDefault]
 [-IsDefaultArbitrationMailbox]
 [-RetentionId <Guid>]
 [-RetentionPolicyTagLinks <RetentionPolicyTagIdParameter[]>]
 [-WhatIf]
 [<CommonParameters>]

Parameters (8)

Parameter	Type	Required	What it controls
-Name	String	yes	The Name parameter specifies the policy name.
-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.
-DomainController	Fqdn		This parameter is available only in on-premises Exchange.
-IsDefault	SwitchParameter		This parameter is available only in the cloud-based service.
-IsDefaultArbitrationMailbox	SwitchParameter		This parameter is available only in the cloud-based service.
-RetentionId	Guid		The RetentionId parameter specifies the identity of the retention policy to ensure mailboxes moved from an on-premises Exchange deployment to the cloud continue to have the same retention policy applied to them. The...
-RetentionPolicyTagLinks	RetentionPolicyTagIdParameter[]		The RetentionPolicyTagLinks parameter specifies the names of retention policy tags to be associated with this policy.
-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.