Oh no, that sounds like a stressful situation! Unfortunately, it's not possible to recall or delete an email once it's been sent to everyone's inbox. However, there are a few steps you can take to minimize the damage:

1. Send a follow-up email: If you realize your mistake quickly, you can send a follow-up email to everyone who received the original email, explaining that it was sent in error and asking them to disregard it.
2. Use a recall feature: Some email providers, such as Gmail, offer a "Undo Send" feature that allows you to retract an email within a certain time frame (usually a few seconds or minutes) after sending it. Check your email provider's settings to see if this feature is available.
3. Contact your email provider's support team: If the email contains sensitive or confidential information, you may want to contact your email provider's support team to see if they can help you retrieve or delete the email from everyone's inbox. However, this may not be possible, especially if the email has already been opened by the recipients.
4. Apologize and move on: If all else fails, you may need to apologize to your colleagues for the mistake and move on. It's important to learn from the experience and take steps to prevent similar mistakes in the future, such as double-checking the recipient list before hitting "send."

Remember, accidents happen, and it's important to handle the situation with grace and professionalism.