Unable to send/receive my yahoo emails through outlook 2003 while have checked set up details and seems ok.?

Troubleshooting instructions. If you followed the above configuration steps, you should be all set. However, if you cannot send or receive mail with your email client, try the following tips. The Yahoo! Mail SMTP server requires authentication. Make sure you have enabled SMTP authentication. To turn this setting on, follow these steps: 1.Click "Tools," then select "Email Accounts." 2.Select "View or change existing email accounts" and click "Next." 3.Select your Yahoo! Mail account and click the "Change" button on the right. 4.Click the "More Settings..." button in the bottom-right corner of the Email Accounts window. 5.In the Internet Email Settings window, click the "Outgoing Server" tab. Ensure that the box is checked next to "My outgoing server (SMTP) requires authentication." 6.Click the "Advanced" tab and ensure that you have not selected "This server requires a secure connection (SSL)" under the incoming (POP3) or outgoing (SMTP) port settings. Closed and Restart Outlook. Check this link below if you have Premium Yahoo Plus (Sign in) http://help.yahoo.com/l/us/yahoo/mail/yahoomail/mailplus/pop/pop-35.html;_ylt=Ao0MYUhekCpC8yyP8Hfvv.W7myN4

The type of e-mail account: POP3, IMAP or HTTP. Your user name. Your password. The SMTP server name or address. The POP3 server name or address. Is Secure Password Authentication (SPA) required? The port number that is used for SMTP. (Most ISPs use port 25.) Is encryption (SSL is most common) required for the port? The port number that is used for POP3. (Most ISPs use port 110.) Do you require encryption (SSL is most common) for the port? Does the outgoing e-mail server (SMTP) require authentication? If so, do you use my normal e-mail name and password? Use one of the following methods to configure the Internet E-mail information service, as appropriate for the version of Outlook that you are running.