BT Business home

Error 0x800CCC18 - Logon attempt failed

Microsoft ends its support for Windows XP inc Outlook Express, find out more.

If you receive Error 0x800CCC18 SICILY_LOGON_FAILED, this means that your logon attempt has failed. Outlook Express will return an error similar to the following:

"Unable to logon to the server using Distributed Password Authentication.
Account:'Company POP3 Server Accnt.',
Server: '',
Protocol: POP3,
Server Response: '-ERR The AUTH protocol exchange was cancelled by the client.',Port: 110, Secure(SSL): NO, Server
Error: 0x800ccc90, Error Number: 0x800ccc18"

A common cause for this error is where you have asked Outlook Express to log on using Secure Password Authentication.

As BT Business does not require you to use Secure Password Authentication, please ensure that this option is NOT selected within your mail account properties.

If you still receive the same error, please contact us. In the meantime, to read your emails simply use Webmail.

  • Bookmark and Share

Sorry for interrupting your journey

We're working on improving our website so you get the information you want quickly. Please help us by providing your phone number. We apologise for the short delay and thanks for your patience.

Please enter a valid UK Phone number (note: numbers need to start with 0 and contain 10-11 numbers).

Reason for your visit.

Please wait...
Please wait...