dnsbl

package

v0.2.6 Latest Latest Go to latest Published: Nov 10, 2026 License: MIT Imports: 7 Imported by: 0

Details

Package dnsbl looks up connecting IP addresses in DNS blocklists, telling a listing apart from the error codes lists return to resolvers they refuse.

This section is empty.

This section is empty.

func Listed(addrs []net.IPAddr) bool

Listed decides whether an answer means "listed". Lists answer inside 127.0.0.0/8; 127.255.255.x (Spamhaus) and 127.0.0.1 are errors or tests.

func Query(ip net.IP, list string) string

Query is the name to look up for ip in list.

type Checker struct {
	DNS dnsx.Resolver
	// contains filtered or unexported fields
}

Checker queries lists and caches answers for an hour.

func (c *Checker) Check(ctx context.Context, ip net.IP, lists []string) []string

Check returns the lists that list ip. Private and loopback addresses are never checked.