Typo error mailbox

Can you please provide more context or information about the typo error you're experiencing with the word "mailbox"? For example:

• What is the exact error message you're seeing?
• Where did you encounter the error (e.g. in a specific program, document, or website)?
• What were you trying to do when you encountered the error?

This will help me better understand the issue and provide a more accurate solution.