Ok Back story...I had SBC DSL then switched to U-Verse and now I cannot send
email from Outlook Express or Outlook. Have talked to tech support from both
U-Verse and my email other ISP that I use for my email address. This is the
error I receive.

The message could not be sent because the server rejected the sender's
e-mail address. The sender's e-mail address was '.
Subject ' work email ', Account: 'pop.peoplepc.com', Server:
'smtp.att.yahoo.com', Protocol: SMTP, Server Response: '553 From: address not
verified; see
http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html',
Port: 587, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC78

The funny part is ATT escelated this to their yahoo support team and they
told me my OE was courrupted. I have verified the email addresses like they
have asked to do but I still get these errors. All of my settings are correct
according to ATT & People Pc.

Please help me!