Hello,
I have several of these warnings in "mail.warn" log:
Jun 14 08:53:43 server postfix/dnsblog[27951]: warning: dnsblog_query: lookup error for DNS query 4.3.2.1.list.dnswl.org: Host or domain name not found. Name service error for name=4.3.2.1.list.dnswl.org type=A: Host not found, try again
Jun 14 08:58:49 server postfix/dnsblog[29690]: warning: dnsblog_query: lookup error for DNS query 9.8.7.6.list.dnswl.org: Host or domain name not found. Name service error for name=9.8.7.6.list.dnswl.org type=A: Host not found, try again
Do you know where these come from?
There are many IPs - I suppose they are the IPs of the senders.
However, I'm not sure if it's correct that it's trying so many DNS lookups like these, as obviously all of them are failing.
Hello,
I have several of these warnings in "mail.warn" log:
Do you know where these come from?
There are many IPs - I suppose they are the IPs of the senders.
However, I'm not sure if it's correct that it's trying so many DNS lookups like these, as obviously all of them are failing.