I have a lot of warnings like this below in my logs. Why is that and how can I correct this?
mail postfix/dnsblog: warning: dnsblog_query: lookup error for DNS query 18.104.22.168.zen.spamhaus.org: Host or domain name not found. Name service error for name=22.214.171.124.zen.spamhaus.org type=A: Host not found, try again
It also looks like the name resolving is just fine because:
# host 126.96.36.199.zen.spamhaus.org ;; connection timed out; no servers could be reached
# host google.com google.com has address 188.8.131.52 google.com has address 184.108.40.206 google.com has address 220.127.116.11 google.com has address 18.104.22.168 google.com has address 22.214.171.124 google.com has address 126.96.36.199 google.com has IPv6 address 2a00:1450:4007:814::200e google.com mail is handled by 40 alt3.aspmx.l.google.com. google.com mail is handled by 10 aspmx.l.google.com. google.com mail is handled by 50 alt4.aspmx.l.google.com. google.com mail is handled by 30 alt2.aspmx.l.google.com. google.com mail is handled by 20 alt1.aspmx.l.google.com.