Spam filter

[kOho]

Hi,

Too many spam landing in my inbox, had a look the sender ip and all comes from ip range, I tried to blocked with the wildcard, but it doesn't like it.
Than I tried like this: 193.9.29.0-255, and accept it, my question is, will it work or not? I've got many many spams from this ip range and 193.9.30.* and 193.9.31.* too, but I don't want to add more than 700 filters...

Please help me!

 

[toml]

Try something like:
iptables -A INPUT -s 193.9.30.0/23 -J DROP
or something similar, the /23 tells it that it should block all 512 address in that range.