This is a text-only version of the following page on https://raymii.org: --- Title : Microsoft Exchange / Active Directory Powershell script to notify users of expiring Passwords Author : Remy van Elst Date : 08-08-2013 URL : https://raymii.org/s/software/Microsoft_Exchange_Powershell_Script_User_Password_Expiry.html Format : Markdown/HTML --- This is a small PowerShell script which emails your users that their password is going to expire in X days. This is needed when you have an Active Directory and Exchange Environment, but your users do not log in to a Windows machine bound to the Active Directory, but for example a Mac OS X or Linux machine with Full Disk Encryption enabled. Then they are not notified that their password is about to expire. This script can run as a scheduled task and scan and email your users that their password is about to expire.

It is tested on a Windows Server 2008 environment, with Exchange 2010. Domain is not running in Mixed mode, all servers are Windows Server 2008 R2. The script is installed as a scheduled task on one of the Exchange Edge servers with the SMTP role, but it does not have to be there, because the SMTP server variable is configurable. The amount of days to email before a password expires is also configurable. ### PowerShell setup First we need to allow execution of unsigned Powershell scripts. _This can be dangerous, so make sure your server security is adequate._ Fire up a `cmd.exe` _with elevated privileges, run it as admin_ and launch `powershell`. Then execute the following command: Set-ExecutionPolicy unrestricted This does the following: Load all configuration files and run all scripts. If you run an unsigned script that was downloaded from the internet, you are prompted for permission before it runs. [More info on the Set-ExecutionPolicy cmdlet][2] ### The script $ExpireDays = 30 $SendingEmail = "helpdesk@example.org" $SMTPHost="127.0.0.1" Import-Module ActiveDirectory $AllUsers = get-aduser -filter * -properties * |where {$_.Enabled -eq "True"} | where { $_.PasswordNeverExpires -eq $false } | where { $_.passwordexpired -eq $false } foreach ($User in $AllUsers) { $Name = (Get-ADUser $User | foreach { $_.Name}) $Email = $User.emailaddress $PasswdSetDate = (get-aduser $User -properties * | foreach { $_.PasswordLastSet }) $MaxPasswdAge = (Get-ADDefaultDomainPasswordPolicy).MaxPasswordAge $ExpireDate = $PasswdSetDate + $MaxPasswdAge $Today = (get-date) $DaysToExpire = (New-TimeSpan -Start $Today -End $ExpireDate).Days $EmailSubject="Password Expiry Notice - your password expires in $DaystoExpire days" $Message=" Dear $Name,

Your Password expires in $DaysToExpire days.
To change your password, please go to https://webmail.example.org/owa/, log in and click the settings button, then click Change Password.
If you do not update your password in $DaysToExpire days, you will not be able to log in, so please make sure you update your password.
If you need any help, contact us via email: helpdesk@example.org, by internal phone 1337, or walk by Building C, Floor 4, Room C41A.
Sincerely,
The IT Department.

" if ($DaysToExpire -lt $ExpireDate) { echo "$Email expires in $DaysToExpire days" Send-Mailmessage -smtpServer $SMTPHost -from $SendingEmail -to $Email -subject $EmailSubject -body $Message -bodyasHTML -priority High } } Save this as a `.ps1` script, for example `Expiry-Mail-30.ps1`. Then set up a scheduled task to run every night, without the user being logged in, as action executing this script. It will send out an email to all users with a password that expires in 30 days, it will keep doing so until they change it. ### For the helpdesk You can also change the script to send the email directly to the IT helpdesk, so that they can manually contact the user. Or you can do it both, or create a copy script and task with the `$ExpireDays` set to 2 and the email to IT Helpdesk, so that the user has a month to change their password, and the IT staff can help the user before it is to late. [1]: https://www.digitalocean.com/?refcode=7435ae6b8212 [2]: http://ss64.com/ps/set-executionpolicy.html --- License: All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got and place my name and a link to this site with the article as source. This site uses Google Analytics for statistics and Google Adwords for advertisements. You are tracked and Google knows everything about you. Use an adblocker like ublock-origin if you don't want it. All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Just to be clear, the information on this website is for meant for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not 'rm -rf /' as root for example. If you have any questions then do not hesitate to contact me. See https://raymii.org/s/static/About.html for details.