Unfortunately, Gmail's Undo Send feature only allows you to recall an email within a small window (5-30 seconds) after sending it. There's no way to retrieve an email once that window closes, regardless of how much time has passed. Here's what you can do depending on the situation: Contact the recipient directly: Explain the situation and apologize for any inconvenience caused. If the email contained errors, offer a follow-up message with corrections. Limit the reach: If possible, inform any copied or forwarded recipients about the error or your revised intentions. Document the error: Keep a record of your actions and communication to avoid similar situations in the future.