Config option to skip pyzor check on empty body emails?

[Sebastian Arcus]

Is there any way to tell SA to skip pyzor checks on emails with an empty 
body (even if there are attachments). I've noticed for a while now that 
emails which don't contain any text in their bodies seem to 
automatically trigger PYZOR_CHECK (even if they have an attachment) - 
although they are private emails so can't possibly match the digest of 
spam emails. I can only guess that Pyzor matches the digest of empty 
emails automatically. I have clients who receive important emails from 
their customers just with an attachment and a subject line - and they 
all seem to go to Junk - because they trigger the PYZOR_CHECK rule - 
which is causing problems. Any way to deal with this?