I am new to the list. This is on OS-X Server 10.6.3 on an Xserve with postfix 2.5.5 that came with the system.
I have a situation where using zen.spamhaus.org , spam gets through despite zen saying that IP is bad. here is a sample error message: connect from cpe-67-252-139-22.buffalo.res.rr.com [67.252.139.22] May 19 01:09:15 velo postfix/smtpdP26473]: warning: 22.139.252.67.zen.spamhaus.org: RBL lookup error: Host or domain name not found. Name service error for name=22.139.252.67.zen.spamhaus.org type=A: Host not found, try again nslookup 22.139.252.67.zen.spamhaus.org Server: 10.0.0.20 Address: 10.0.0.20#53 Non-authoritative answer: Name: 22.139.252.67.zen.spamhaus.org Address: 127.0.0.10 Name: 22.139.252.67.zen.spamhaus.org Address: 127.0.0.4 Is it possible that the postfix software barfs when the RBL lookup returns multiple responses and lets the messsage through ? Is there a way to fix this (other than removing zen and adding the individual lists it contains) ? This is a low volume server. And if I exceeded my daily quota, wouldn't the nslookup command also fail ?
