[Mimedefang] mimedefang + spamassassin (how to modify subject header)

[Nathan Vidican]

what line would I use to add to the subject header; I know how to modify a 
header within mimedefang-filter, just not sure how to include said header's 
previous content. Something like this

Subject: was something else 


if ($msg_was_determined_to_be_spam_by_spamassassin) {   
     action_change_header("Subject", "[Possible Spam] $old_subject");
}

In short, how does one retrieve the value of a messages given subject header 
(or any header for that matter)? 

--
Nathan Vidican
nathan at vidican.com
Innovative Product Sales
http://www.InnovativeProductSales.com/