After installing latest Windows Update this morning I got this error when checking my emails.
"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"
I restored Windows prior to the update and the emails were working fine with no errors. Just to make sure I ran the Windows update again and the same problem occurred. Once again after restoring Windows the e-mails were working fine.
Something in the latest Windows update is causing a problem with Outlook?