After you create a message and before you send it, you should proofread it for errors or omissions. If you discover a typographical or other error, you can edit it the same as you would a word-processing document. You can use familiar commands like Copy and Paste or operations like drag and drop to edit your text.
In Outlook, create a new mail message with recipients, a subject, and message text.
To change the recipient, click To.
In the Select Names dialog box, click a name in the Name list and click To to add ...