AT&T Yahoo! service is making some security improvements and these changes will affect members who send or receive email from a desktop or mobile client program, such as Microsoft Outlook, Microsoft Outlook Express, Eudora, Apple Mail, or Thunderbird.
You can download the AT&T Self Support Tool and select Cannot send/receive email from the Self Support Tool Main Interface to run an email settings check. When prompted to change your email settings, select Yes.
Manual settings are as follows:
- Change the POP server to pop.att.yahoo.com.
- Change the SMTP server to smtp.att.yahoo.com.
- Check the option labeled Use an encrypted connection (SSL) and change the POP3 port to 995.
- Check the option labeled Use an encrypted connection (SSL) and change the SMTP port to 465.