How to send Yahoo email on cingular 8125?

Have Yahoo IMAP account on 8125. Receives email no problem. Cannot send email. What are the correct email settings to send Yahoo IMAP replies with the 8125?

Yahoo has paid, trained TECHS who can help you with your question or problem. Make certain to go into much detail so they understand what information you need. (Simply copy and paste the question you've asked here into the form and add more details if necessary.)

Here's a link to a Yahoo! Mail Errors and Problems Reporting Form:
http://help.yahoo.com/l/us/yahoo/mail/yahoomail/bug_f.html?from_url=http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=yahoo+mail+help+form

Here's a link to a Yahoo E-Mail Help Request Form:
http://help.yahoo.com/l/us/yahoo/mail/yahoomail/general_f.html?from_url=http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=yahoo+mail+help+form

Use this form to report incidents of abuse or harassment.http://help.yahoo.com/l/us/yahoo/mail/yahoomail/forms_index.html

Customer Service: 1-408-349-1572
Yahoo contact information is:
Yahoo! Inc.
701 First Avenue
Sunnyvale, California 94089

Phone (408) 349-3300
Fax (408) 349-3301

Office Hours 8:30 a.m. to 5:00 p.m. PST

Beware: I was informed phone calls are not free and can be very costly!

PS: On the very top right-hand corner of your Yahoo Mail screen there is a link to HELP.

TO BETA USERS:

If you are experiencing many errors or don't like the new Yahoo Beta Mail, here's a link which will switch you back to Yahoo Classic Mail:
The page will simply say: "Do you really want to opt out?"
Click on: YES!
http://us.mg1.mail.yahoo.com/dc/optout?script=no