This tutorial assumes that you have already opened Outlook Express:

1. Click Tools > Accounts > Mail Tab

2. Click the Account that needs to be changed

3. Click Properties

4. Set the Outgoing / SMTP Mail Server setting needs to be mail.your-domain-name.co.za

5. Tick My server requires authentication

6. Select Settings: ensure that “Use same settings as my incoming mail server” is selected

7. Click OK > Apply > OK

8. Click Restart Outlook Express