Regarding your issue not able to add aliases on your primary alias, please be informed that I have checked your account and found out that you have already reached the limit on adding aliases on your account per year. Be advised that there is a limit of 10 aliases per year.
How frequently can I add alias to Outlook?
Outlook.com comes with support for up to 10 aliases, which you can change yearly.
How often can I add alias to my Microsoft account?
Replies (1) – You can add up to 10 alias in a year, including the alias that you have added and removed before.
How many Microsoft alias can you have?
Now keep in mind that you can only add a maximum of 10 aliases — email or phone number — as mentioned in our Change the email address or phone number for your Microsoft account article.
Can I reuse Microsoft alias?
Deleted or removed Microsoft aliases can never be used again. A Gmail address can be removed as an alias from one Microsoft account and moved to another Microsoft account. It really does not matter how Microsoft keeps track of the deleted addresses. Was this reply helpful?
