It seems as though the linked accounts have been removed.  I see that Outlook.com suggests to use alias instead of linked accounts moving forward.  My issue is that I use a custom domain name through 'live domains.'  When I am logged into one of my Microsoft Accounts with the live domain and go to create an alias my unique domain is not an option.

Is there a way I can use my personalized domain as an alias?  Previously I had 3 accounts linked together, so I either need to now separately check 3 accounts, need to add to of the old accounts as an alias to my main account, or migrate my personal domain away from Microsoft and stop using Outlook.com

Thanks,

Manu