"dnsbl" Attribute

plugin.dnsbl.relay-tests-only
If set to 1, this disables DNSBL tests for all IP addresses except the first external relay.

Type: PMX_TYPE_INTEGER

Default: 0

Note
This option is disabled by default, because it requires that either (a) there are no trusted relays; or (b) that the plugin.net.trusted-relays attribute is set.
plugin.dnsbl.skip-rbl-tests
If set to 1, this disables all tests using DNS.

Type: PMX_TYPE_INTEGER

Default: 0

Note
It is not recommended to skip RBL checks.