1. Open Outlook
  2. Click on Tools
  3. Click on Email Account
  4. Select View or Change Existing Email Account
  5. Click Next
  6. Select your Email Account
  7. Click Change
  8. Click on More Settings
  9. Click on Outgoing Server Tab
  10. Select My Outgoing Mail Server Requires Authentication
  11. Select Use Same Settings as My Incoming Mail Server
  12. Click Ok
  13. Click Finish