several questions: bad-hosts, no unfriendly hosts, additional whois, ignoring forged headers

[Patrick B. <on...@pa...>]

hey,

i'm using your tool as an isp to report all the spam that my customers 
receive.

1
i figured out, that the .spam/bad file use used to list bad email 
addresses, that return with a negative. today, i wanted to expand the 
list by an address that caused a delivery failure, but the email address 
was already included there.
am i mistaken about the files usage?

2
for some emails i only receive the following answer from spam.pl:

## Parsing Header Information
No unfriendly hosts were found. This cannot have been a spam!

i don't quite understand this message. how can i deactivate it?

3
can i define additional whois servers for specific ip-ranges? many ip 
whois lookups seem to fail.

4
is it possible to tell spam.pl only to process the real, not the forged 
headers? almost all spam mail has forged headers now and i get many 
responses from abuse-desks telling me their address was spoofed and they 
can't do anything about it - and i guess its annoying, too.

thanks for the great tool:)

paddy2706