Just Register on Outlook.com and you can create 10 different aliases using that ID.. 10 Different Aliases means 10 Different ID's How Add an alias to your account In Outlook.com, click your user name in the upper-right corner. Click Account settings. You might have to sign in again. Click Overview. Click Account aliases, and then click Add alias. Enter a new email address, and then click Add alias. If the address you request is already taken, you?ll be prompted to enter a different address. - Or - Select Add an existing email address as a Microsoft account alias, enter an existing email address, and then click Add alias.