Mozilla Thunderbird && plain text messages.
 

How to force Firebird send any composed message in palin-text? Sure, I can select plain text while composeing or select it in address record propery in address book, but hot to made this behavior by deafult? I want that any my outgoing email will be plain text.

Thanx in advance.

I believe you can do that in account settings for the SMTP server. It was in account settings somewhere, I remember hunting it down because I was annoyed at the HTML crap one night.