Some of our readers e-mailed us asking if we know what happened with the e-mail identities in Windows Mail. In Outlook Express, if multiple people were sharing the same computer, they had the possibility to create different identities to keep their e-mail separate from others.
According to this post, found on the Windows Vista Help pages, the ability to create e‑mail identities has been removed in Windows Mail. Instead, Windows Mail enables you to create separate Windows user accounts for each person who wants to use e‑mail on a single computer.
Basically, if multiple people use the same computer they should have different user accounts. This way they can keep both their e-mail and their data private. If you need to learn how to manage and create user accounts, you should read this guide.
Also, if you want to learn more about Windows Mail you can read this tutorial.