You can recall an email in Outlook if both you and the recipient have an Office 365 or Exchange account within the same organization, if the email has not been opened or touched by any rules, and if it was sent within 120 minutes. The feature is only available for colleagues and does not work outside of organizations. To use it, find the email in your Sent folder, navigate to the recall menu, verify the information, confirm the recall, and click Confirm. However, Outlook's email recall feature has limitations, including a limited timeframe and requirements that both you and the recipient must be within the same organization. Additionally, enabling the undo send feature can provide an option to unsend emails immediately after sending them, with a more flexible recall timer available in Gmail compared to Outlook. Scheduling emails for later or testing drafts before sending can also help prevent embarrassing mistakes.