I will to know how to configure IMP to show HTML emails!
How can I do that?

Regards,
Andre

Horde IMP works with HTML e-mail messages without modification. Since Horde is running in your browser, it should just display the HTML.

What happens to HTML e-mail messages when you view them in Horde? Your e-mail server software (or anti-spam server software) is probably converting the HTML to plain text.

This applies to Horde 2.2.3, it may be different for newer versions. What version of Horde are you running?

Horde 3 I'm running, and I only use webbrowser to view my inbox and the HTML is always attached and I have to click in the attached file to view the html (message!)...