cat var log

 shinji postfix/smtpd[4244]: NOQUEUE: reject: RCPT from 96-65-158-1-static.hfc.comcastbusiness.net[96.65.158.1]: 454 4.7.1 <spameri@tiscali.it>: Relay access denied; from=<spameri@tiscali.it> to=<spameri@tiscali.it> proto=ESMTP helo=<nztl6-PC>
Jan 16 09:12:14 shinji postfix/smtpd[4244]: disconnect from 96-65-158-1-static.hfc.comcastbusiness.net[96.65.158.1] ehlo=1 mail=1 rcpt=0/1 rset=1 quit=1 commands=4/5
Jan 16 09:15:34 shinji postfix/anvil[4245]: statistics: max connection rate 1/60s for (smtp:96.65.158.1) at Jan 16 09:12:12
Jan 16 09:15:34 shinji postfix/anvil[4245]: statistics: max connection count 1 for (smtp:96.65.158.1) at Jan 16 09:12:12
Jan 16 09:15:34 shinji postfix/anvil[4245]: statistics: max cache size 1 at Jan 16 09:12:12
root@shinji:~#