Managing personal Outlook.com account settings, security, and privacy
Hi kristinw21,
Thank you for posting your query in Microsoft Community Forums. I'm glad to assist you with your issue on your MSN email account.
When was the last time you accessed your account? If it is more than 1 year, it is possible that it was marked as inactive.
Please be informed that Microsoft accounts become inactive if you don't sign in for more than 365 days or within the first 10 days after signing up for an account. After an account becomes inactive, all messages, folders, and contacts are deleted. Incoming messages will be sent back to the sender as undeliverable.
Kindly provide the affected email address here so we can investigate your account.
Note: Please make sure that your email address is in the correct format so our system can mask your email address to prevent others from seeing your email address.
We're looking forward to your response