Hoping someone here can answer this question and explain what I might be doing wrong.

I am attempting add aliases to my Microsoft account. I have several email addresses, one from a private domain hosted on Outlook.com and several standard Outlook.com email addresses.

Each time I try to add an alias it tells me the email is already in use or something similar. I thought the idea was that you could combine several *existing* or new email accounts under your Microsoft account as aliases, but each time I try to add an account it tells me I can't do it.

I have not tried creating yet another new account, since I already have 3 or 4 accounts I would like to consolidate under one alias.

Can someone explain why this doesn't work, if it should work, and what I need to do in order to actually take advantage of the Alias feature to consolidate/combine email addresses under one account?

Thanks,