rocco scappatura hwuaulzqnjwdpyiinfracomit telnet yourserver 25 ehlo somehostname mail rcpt data copypatse message full headers except deliveredto contains recipient address end line containing dot like quit infact get feb 26 230750 av4 amavis17589 1758903 blocked spam quarantine rspamrgpebz4mzhh4gz messageid 85792892647507zag5l928926myserver mail_id rgpebz4mzhh4 hits 7193 size 4063 1874 ms spammer becoming faster time goes convenient use gray listing something effective tecnique could use reduce false negative thanks rocsca fri 08 aug 2008 043456 0100 false negative