> http://wiki.apache.org/spamassassin/RescoreDetails >
>> Do not use --reuse if you have scanned with SA, but have configured
>> that scanner to run with -L, or you have disabled common network
>> tests or SPF. This is because it relies on the presence of the X-
>> Spam-Status line to pick up hits on those rules, and currently
>> cannot detect those conditions.
> Perhaps the page should omit --reuse by default since it is more
> likely that someone reading this page doesn't have all the add-on
> network tests installed?
> I personally don't have them all, and lots of my corpus is lacking
> spamassassin headers.
The code is smart enough to know that if you don't have the headers it
should turn off reuse. Now if you have headers but have turned off a
bunch of network tests thats a different story. In that case the data
is not useful so you should not run with reuse.