Configuring preferences and options in Outlook.com
I understand that an incorrect email address appears when you enter a particular letter in the recipient field of your Outlook.com and Hotmail accounts. The File > Options instructions apply to classic Outlook for Windows, not Outlook on the web.
Please note that this is a user-to-user forum, so contributors cannot access or change the suggested addresses in your accounts.
While signed in to each account, select New mail, start typing the incorrect address in the To field, and check whether an X appears beside the suggestion. If it does, select the X to remove that entry.
If the X is unavailable or the address continues to appear, select Settings > General > Privacy and data > Suggested people > Clear data and turn off. This clears the entire expanded suggested-recipient list, not only the incorrect address, and the cleared data cannot be recovered. You can enable expanded contact suggestions again afterward.
Also check People to confirm that the incorrect address is not saved as a contact. Saved contacts can still be suggested after Suggested People data is cleared. Repeat these steps separately for the Outlook.com and Hotmail accounts.
I hope this helps you remove the incorrect address from both accounts.
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