I can't send email to the CBL

The CBL support email address DOES NOT use any kind of filtering.

If you cannot send email to the CBL support address, then your mail provider is blocking you through improper use of the CBL. See: my own provider is blocking me.

You will need to use a different provider (perhaps a free hotmail account) to contact us, but it's more important to get your provider to fix their mail service.