I found a step-by-step guide on how to recall an email in Yahoo. Unfortunately, Yahoo does not provide a way to recall messages once sent through Yahoo Mail. Other providers like Outlook or Gmail should instead be considered if email recall is a necessity. However, here are some suggestions that don’t require any fancy features or additional downloads, they just require you to rethink how you send emails to others:
1. Add the attachment first.
2. Double-check the recipient's email address.
3. Double-check the subject line.
4. Double-check the body of the email.
5. Send a test email.
