Hi,
Thank you for sharing your question.
I understand how worrying it is to suddenly lose access to your msn.com emails, especially when you prefer to use that address as your primary account and rely on it for your communication. I know this situation can feel confusing because changing account settings or updating contact information can sometimes shift your primary alias to outlook.com and make it appear as though the msn.com mailbox has disappeared. The reason this usually happens is that your account may switch its sign‑in alias or default mailbox view, which can hide your msn.com folders rather than delete them, or the emails may have been moved to another folder such as Archive, Deleted Items, or Recoverable Items. The resolution is to sign in using your original msn.com alias, check all available folders including Deleted Items and Recoverable Items, and verify that your msn.com address is still listed as an alias under your Microsoft account; once restored, your original mailbox should reappear and your emails may still be recoverable if they are within Microsoft’s retention period.
Would you like me to guide you through the exact steps to check your aliases, restore deleted items, or switch your primary alias back to msn.com so your mailbox becomes visible again?
Please feel free to follow up with whether you can still sign in using your msn.com address, and I’ll help you take the next steps to restore your emails.
I hope this helps.
Best Regards,
Noel