Hi, >> I have a fc15 server with postfix-2.8.10 and have enabled postscreen. >> I've enabled it before without any difficulty, so I'm not sure what >> I'm doing wrong in this case. For some reason it is printing these >> errors periodically: >> >> Oct 31 23:41:15 portal postfix/dnsblog[1520]: warning: dnsblog_query: >> lookup error for DNS query 23.49.18.189.zen.spamhaus.org: Host or >> domain name not found. Name service error for >> name=23.49.18.189.zen.spamhaus.org type=A: Host not found, try again > > cat /etc/resolv.conf > postfix check > > what's the output of those?
It's set up to use the local caching server, and doesn't otherwise have any resolution issues. Even when I try to resolve that host using 8.8.4.4, it returns NXDOMAIN. I've changed resolv.conf to use 8.8.4.4 and it returns the same result: Nov 1 08:54:46 portal postfix/dnsblog[18803]: warning: dnsblog_query: lookup error for DNS query 7.39.158.213.zen.spamhaus.org: Host or domain name not found. Name service error for name=7.39.158.213.zen.spamhaus.org type=A: Host not found, try again # host 7.39.158.213.zen.spamhaus.org 8.8.4.4 Using domain server: Name: 8.8.4.4 Address: 8.8.4.4#53 Aliases: 7.39.158.213.zen.spamhaus.org has address 127.0.0.4 Host 7.39.158.213.zen.spamhaus.org not found: 3(NXDOMAIN) Host 7.39.158.213.zen.spamhaus.org not found: 3(NXDOMAIN) It seems like it may always been an issue with spamhaus. Perhaps I have that configuration wrong? dnsblog seems to do fine with barracuda: Nov 1 08:54:51 portal postfix/dnsblog[19203]: addr 85.59.175.220 listed by domain b.barracudacentral.org as 127.0.0.2 Thanks again, Alex
