On the Internet E-mail Settings window, select the “Outgoing Server” tab.
Select “My outgoing server (SMTP) requires authentication.”
If you did not change the SMTP relay section, select “Use same settings as my incoming mail server”. If you changed the user name and password in the SMTP relay section of your Manage Email Accounts page, select “Log on using” and enter the user name and password. The following example assumes you did not change your SMTP relay section in your Manage Email Accounts page.