I was having trouble with signatures and got errors like: dspam[26434]: Signature retrieval for '1,439c664a263161080180780' failed
dspam[26434]: Unable to find a valid signature. Aborting. dspam[26434]: process_message returned error -5. dropping message. After turning the debugging on I noticed a lot of these errors: unexpected data: header string '' doesn't contains `:' character I found that turning on the the option "Broken LineStripping" should fix this problem. I turned it on and not only did it fix that problem, it also fixed the signature problem. Hopefully this helps someone, I had a hard time finding help for this problem. I use Postfix as the MTA and dspam is setup with one global user/group. -Brad
