Sudden problem with sending receiving e-mail account accessed through outlook 2007

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To start, I have verified with my ISP (ATT U-Verse) none of my account settings changed with my e-mail account. I access e-mail account through office outlook 2007. Everything has worke well the past year. When I open outlook 2007, and hit F9 to refresh send / receive, or try to send new e-mail, I now get an error that states:

Task - Receiving' reported error (0x800CCC18) : 'Your e-mail server rejected your login with Secure Password Authentication (SPA). Verify your account properties. Under Tools, click E-mail accounts.'


Task - Sending' reported error (0x800CCC0F) : 'The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP).'

Any suggestions? Thank You


I had the same problem.

In Outlook, check to see if you have the "Require logon using Secure Password Authentication (SPA)" button checked (Tools->Account Settings, highlight user account, click on Change). If the box is checked, remove the check and save. That fixed my problem.
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