• Type of Account: POP
• Username: yourscreenname@att.net (you must keep the "@att.net" part on there)
• POP Server: pop.att.yahoo.com
• SMTP Server: smtp.att.yahoo.com
• Use authentication with proper username and password
• Enable SSL
• Change your SMTP Server Port to 465.
• The first time you send a message you should be prompted for your password, enter and save in your Keychain if desired.
This worked for three separate accounts I set up last night and no hiccups in the past 24 hours.
