udderweb ~ # tail -n 20 /var/log/mail.log
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: match_hostname: unknown ~? 12.47.45.0/24
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: match_hostaddr: 61.88.182.4 ~? 12.47.45.0/24
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: match_hostname: unknown ~? 12.158.188.0/24
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: match_hostaddr: 61.88.182.4 ~? 12.158.188.0/24
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: match_list_match: unknown: no match
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: match_list_match: 61.88.182.4: no match
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: send attr request = connect
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: send attr ident = smtp:61.88.182.4
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: private/anvil: wanted attribute: status
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute name: status
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute value: 0
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: private/anvil: wanted attribute: count
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute name: count
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute value: 1
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: private/anvil: wanted attribute: rate
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute name: rate
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute value: 1
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: private/anvil: wanted attribute: (list terminator)
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: input attribute name: (end)
Apr  8 11:55:33 udderweb postfix/smtpd[14373]: > unknown[61.88.182.4]: 220 mail.udderweb.com ESMTP Postfix