Follow the steps below to configure Outlook Express to use SMTP authentication
- From the top menu, click on "Tools," Select "Accounts..."
- Select the account which you want to configure and click "Properties"
- Go to the "Servers" tab, check "My server requires authentication"
- Click on the "Settings" button
- In the "Outgoing Mail Server" dialogue box, click "Log on using" radio button
- Enter your full email address in the "Account name" field
- Enter your email account password in the "Password" field
- Click "OK" on all dialogue boxes
