[dspam-users] signature problem

Hello,

I am new to this list but already like dspam. I believe I have most things
configured correctly. But I am having problem with signatures.

Preference "signatureLocation=headers" # 'message' or 'headers'

Now, when I submit a message to spam-, I get this:

Feb 1 00:16:26 192 dspam[21576]: Unable to find a valid signature. Aborting.

But in the message header I can see the signature:
X-DSPAM-Signature: 45c11ac8194845209328925

The question is why cannot a message be submitted for reclassification?

Thank you very much!

-- 
Zbigniew Szalbot