Sets an Active Directory user account expiration date.

Set-UserExpiration sets the expiration date for one or more Active Directory user accounts. If no date is specified, the account is configured to expire in 90 days. If a date greater than 90 days in the future is provided, the date is automatically capped at 90 days.

Supports pipeline input and -WhatIf.

Parameters

Identities

The user account(s) to modify.

Date

Optional expiration date.

• Defaults to 90 days from today.
• Dates greater than 90 days in the future are capped at 90 days.

Server

Optional domain controller to query and update.

Examples

Expire an account in 90 days

Set-UserExpiration -Identities JHeisler

Set a specific expiration date

Set-UserExpiration -Identities JHeisler -Date "12/15/2026"

Process multiple users

Set-UserExpiration -Identities JHeisler,JSmith,JDoe

Pipeline input

'JHeisler','JSmith','JDoe' | Set-UserExpiration

Preview changes

Set-UserExpiration -Identities JHeisler -Date "12/15/2026" -WhatIf

Output

Returns a custom object containing:

• SamAccountName
• Name
• ExpirationDate
• Success

Notes

• Requires the Active Directory PowerShell module.
• Supports -WhatIf and -Confirm.
• Designed for use in automation workflows and bulk account management tasks.

Use this when you need to a list of all mailboxes forwarding to a specified mailbox.

Simple, yet effective.

The Snippet

RecipientCN = (Get-Recipient johndoe).Identity
Get-Mailbox -ResultSize:Unlimited -Filter:{ForwardingAddress -ne $null} | Where-Object {$_.ForwardingAddress -eq $RecipientCN}

Export results to a CSV

RecipientCN = (Get-Recipient johndoe).Identity
Get-Mailbox -ResultSize:Unlimited -Filter:{ForwardingAddress -ne $null} | Where-Object {$_.ForwardingAddress -eq $RecipientCN} | Export-Csv -Path:"C:\temp\mailboxForwards.csv" -NoTypeInformation

Credit to Grant on StackOverflow for this. Huge thanks to Grant & mjolinor for answering pr0digy’s question over on Stack Overflow.