what to sa-learn, poisoning

[Charles Sprickman]

Hello,

I'm not seeing it in the FAQ/wiki, but I've missed things in there before, 
so I thought I'd ask a quick question here.

I assume everyone else sees spam sneak through that contains a "spammy" 
subject (usually mentioning drugs with some mis-spellings/obfu), an 
attached image that apparently has the actual spam "message" in it, then 
some text that is very hammy in it's content.

I've been assuming that this is what people refer to as "bayes poison" and 
I do not feed sa-learn with these.

Is this correct, or would information in the headers still prove valuable 
to bayes?

Thanks,

Charles