In order to activate IDC-specific login, you will need to click the link sent by email to confirm your email address. It is a known issue that those confirmation emails may be classified as spam, or may never arrive. Furthermore, there is not much you can do with the IDC data without a Google account, since you will need to authenticate with a Google account to access the files stored in IDC. Because of this, we recommend that you use a Google account to log into the IDC portal.