On Sun, Mar 13, 2011 at 12:43 PM, Wietse Venema <wie...@porcupine.org> wrote: > Ralf Hildebrandt: >> $ host 197.251.232.190.zen.spamhaus.org >> 197.251.232.190.zen.spamhaus.org has address 127.0.0.11 >> 197.251.232.190.zen.spamhaus.org has address 127.0.0.4 >> >> 2*2 = 7? > > Surely you have enough logs of your own that you can verify > that this does not happen.
For your interpretation: [root@mx4 ~]# grep -i 151.56.102.63 /var/log/maillog Mar 13 10:53:45 mx4 postfix/postscreen[2698]: CONNECT from [151.56.102.63]:19288 Mar 13 10:53:45 mx4 postfix/postscreen[2698]: HANGUP after 0 from [151.56.102.63]:19288 in tests before SMTP handshake Mar 13 10:53:45 mx4 postfix/postscreen[2698]: DISCONNECT [151.56.102.63]:19288 Mar 13 10:53:45 mx4 postfix/postscreen[2698]: CONNECT from [151.56.102.63]:19289 Mar 13 10:53:45 mx4 postfix/dnsblog[7617]: addr 151.56.102.63 listed by domain b.barracudacentral.org as 127.0.0.2 Mar 13 10:53:45 mx4 postfix/dnsblog[7584]: addr 151.56.102.63 listed by domain b.barracudacentral.org as 127.0.0.2 Mar 13 10:53:45 mx4 postfix/dnsblog[7576]: addr 151.56.102.63 listed by domain zen.spamhaus.org as 127.0.0.10 Mar 13 10:53:45 mx4 postfix/dnsblog[7615]: addr 151.56.102.63 listed by domain zen.spamhaus.org as 127.0.0.10 Mar 13 10:53:51 mx4 postfix/postscreen[2698]: DNSBL rank 6 for [151.56.102.63]:19289 Mar 13 10:53:52 mx4 postfix/postscreen[2698]: NOQUEUE: reject: RCPT from [151.56.102.63]:19289: 550 5.7.1 Service unavailable; client [151.56.102.63] blocked using b.barracudacentral.org; from=<kayl...@nerdly.net>, to=<garyst...@texoma.net>, proto=SMTP, helo=<texoma.net> Mar 13 10:53:52 mx4 postfix/postscreen[2698]: DISCONNECT [151.56.102.63]:19289 [root@mx4 ~]# So, it looks like the DNSBL that gets the credit is _perhaps_ the first to respond, I dunno for sure. kind regards/ldv
