Mail::Milter::Module::MailDomainDNSBL(3pm) on Linux

The text f67b3716f7f3, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.

milter to accept/reject mail whose sender domain matches a DNSBL