The most common Open-Xchange webmail login errors and what each one actually means, starting with LGI-0006 (“user name or password is incorrect”), and how to fix them.
Known Errors on Open-Xchange Webmail interface URL’s:
Error: The user name or password is incorrect. (LGI-0006)
Screenshot:

Reason for Error: Clients have incorrectly entered their username or password for the domain. Please retry with the correct account username and password details.
