Outlook Express Error : 0x800CCC18 SICILY LOGON FAILED – Logon attempt failed

  1. Check account information, making sure account is not case sensitive, close Outlook Express, restart the computer and try reconnecting.
  2. Create a different identity and see if it will logon on from this identity with the same information.
  3. Make sure the account is still active with the ISP and that the ISP is not having an e-mail outllook.