You can make Outlook 2003 automatically spell check all outgoing e-mails before sending. The following option will force this to occur before you send out composed messages.
1. Open Outlook.
2. Go to the top of the Ribbon and click the Office Button.
3. Click on the Options button.
4. In the left pane, select Mail.
5. Check the Always check spelling before sending checkbox.
6. Click the OK button.
