SEE: How to add a drop-down list to an Excel cell (TechRepublic) You can also send a replacement message with the correct information.
Using the recall feature under the right conditions, your previous email is deleted without the recipient ever seeing it. You can fix your error after the fact by recalling a message. And then you realize for one reason or another that the message has a mistake or that it shouldn't have been sent at all. You send someone an email in Microsoft Outlook.
