Alert!

Problem: AT&T/Yahoo DSL users have had trouble sending e-mail, getting an error message whenever they try. Typically, the message states that the user's password was rejected or that the e-mail address needs to be verified. May, 2008

Fix:

* If your POP server and SMTP server names include "sbcglobal," substitute "att" instead. For example, change "smtp.sbcglobal.yahoo.com" to "smtp.att.yahoo.com." But don't change the "sbcglobal" term in your e-mail address (such as steve@sbcglobal.net)--that remains the same.

* Enable SSL for your POP server and select to override the default POP port with port 995.

* Enable SSL for your SMTP server and select to override the default SMTP port with port 465.

After doing all this, your e-mail problems should be gone. If not--and if you continue to get errors about your account needing to be verified--the apparent cause is a problem on AT&T's end. You'll need to contact AT&T for more advice or simply wait for the company to fix it.

Read full story here: Macworld Weekly newsletter: A Yahoo Mail Bug