[horde] Imp: Convert HTML mail to text automatically

[Jan Niggemann]

Hi all,

I don't want to to permit the use of inline HTML as described here:  
http://www.horde.org/apps/imp/docs/INSTALL
When a mail is HTML, I get:

This message part contains HTML data, but inline HTML display is disabled.
View HTML data in new window.
Convert HTML data to plain text and view in new window.

Is there a setting so that HTML mail is displayed as / converted to  
text without the users needing to explicitly click the "Convert  
HTML..." - link?

Regards
jan