I am new to using postscreen with DNS blacklists, I never configured them before, so maybe this is a misunderstanding on my part. To my understanding, a host is on the blacklist, if the DNS query returns a positive response.
I now see a lot of entries similar like this in the log files, and they are also reported in the daily summary e-mail as warnings:
Apr 11 09:20:26 mail postfix/dnsblog[11746]: warning: dnsblog_query: lookup error for DNS query 165.144.196.217.list.dnswl.org: Host or domain name not found
. Name service error for name=165.144.196.217.list.dnswl.org type=A: Host not found, try again
To my understanding, this indicates that the IP is not on the blacklist.
Context
Default configuration on v5.8.1
Expected Behavior
The line above should not be added to the log, and not included in the daily summary e-mail.
Actual Behavior
It is logged and as it is a warning, also reported in the daily summary e-mail.
I am new to using postscreen with DNS blacklists, I never configured them before, so maybe this is a misunderstanding on my part. To my understanding, a host is on the blacklist, if the DNS query returns a positive response.
I now see a lot of entries similar like this in the log files, and they are also reported in the daily summary e-mail as warnings:
To my understanding, this indicates that the IP is not on the blacklist.
Context
Default configuration on v5.8.1
Expected Behavior
The line above should not be added to the log, and not included in the daily summary e-mail.
Actual Behavior
It is logged and as it is a warning, also reported in the daily summary e-mail.