|There are already great RBL checking tools like http://www.dnsbl.info/dnsbl-database-check.php, if you're trying to find out if you're listed, but if you want more manual control, like getting the raw return value for a specific IP, in a specific RBL list, you can use "dig".|
To do this, you simply do a lookup, of the IPv4 IP in reverse order, as a subdomain of the RBL list.
For example, lets say you want to check IP: ...
In the RBL list:
To do this, you'd run the query:
dig 18.104.22.168.hostkarma.junkemailfilter.comand check the result.
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