Currently a folder can only have the flag "prefer HTML to Plain Text", that is: whenever I receive an email which has plain text AND HTML I see the HTML version without being bothered with the html-code and the red box with "Note: This is an HTML message. ..." What is missing is the possibility to prefer plain text (when the mail contains plain text AND HTML I want to see the plain text version) but whenever an email contains HTML ONLY, I want to see the html version WITHOUT the red warning box. This goes a bit hand in hand with my former request bug #260354 which claims to be implemented, but I still do not see a way to set this flag per address. Reproducible: Always