Skip URIBL checks - skip_uribl_checks
Turning on the skip_uribl_checks setting will disable the URIDNSBL plugin.
Default: 0

URIDNSBL max domains - uridnsbl_max_domains
The maximum number of domains to look up.
Default: 20

URIDNSBL Skip domains - uridnsbl_skip_domain
Specify a domain, or a number of domains, which should be skipped for the URIBL checks. This is very useful to specify very common domains which are not going to be listed in URIBLs.
Default: empty