Adding Aliases to AD with PowerShell

Updated 10th October 2024

It turns out that this post is very popular, so I thought I would revisit the processing of adding aliases to AD with PowerShell since quite a few things have changed in the 2 years since I wrote it.

You can also read this on my website.

First of all: adding Active Directory aliases is a super simple task.

Manually Adding Active Directory Aliases

If you only have a single AD alias to add, then it’s often simpler and maybe even quicker to just use the Active Directory Users and Computers GUI. If you didn’t know, this is often abbreviated to ADUC. Quack, quack!

This control panel interface is often found on any of your domain controllers.

To add aliases manually, you would go through these steps:

• Open ADUC
• Find the user you need to add an alias to
• Right click the user and go to the Attributes tab
• In the long list, find proxyaddresses
• In this property, create a new record prefixed with smtp:

For example, you would need to enter:

smtp:first.last@example.com