How to configure DNSBL lookup?

[sol2070]

Where do I put the configuration for DNSBL lookup?
When I add

check {
    dnsbl all.s5h.net b.barracudacentral.org
}

at the end of maddy.conf, I get this error on maddy restarting:
/etc/maddy/maddy.conf:194: unknown module or global directive: check

What am I missing?

I'm using the pre-built tarball of version 0.7.0.

Thank you!

[foxcpp]

check { } should be placed into smtp, submission or msgpipeline in order to specify when in particular it should be applied. You probably want to add it inside smtp tcp://0.0.0.0:25 to apply it for inbound messages.

[sol2070]

Thank you! I put it into submission, as most of the attacks are targetting this. Looks like it's working!