Managing personal Outlook.com account settings, security, and privacy
Hi saffroncairns,
Welcome to Microsoft Community. I understand that you suspect that your account might have the same email address. Please be informed that each account is unique and our system would not allow to create a duplicate email. To ensure that your account is secured, please try to update your password and reset information by following the steps on this **link**.
If you still encounter this issue, you can try to create a message rule to filter those messages. You may refer to these steps:
- Sign in your account and go to your Inbox.
- Click the cog icon located at the upper right of the page and select More mail settings.
- Under Customizing Outlook, click Rules for sorting new messages.
- Follow the on screen instructions.
If you need further assistance, please let us know.
Thanks!