mxdns

Documentation

Overview

Package mxdns provides DNS utilities for SMTP servers.

Index

• type Blocked
• type MxDNS
  • func NewMxDNS(ipBlocklists []string, domainBlocklists []string) *MxDNS
  • func (m *MxDNS) CheckDomain(domain string) []Blocked
  • func (m *MxDNS) CheckIP(ip net.IP) []Blocked
  • func (m *MxDNS) CheckReverse(ip net.IP, expectHost string) (fcrdns bool, expectedHost bool)
  • func (m *MxDNS) IsDomainBlocked(domain string) bool
  • func (m *MxDNS) IsIPBlocked(ip net.IP) bool

Types

type Blocked

type Blocked struct {
	Blocklist string
	IsBlocked bool
	Err       error
}

Blocked holds the result of checking a single blocklist.

type MxDNS

type MxDNS struct {
	// contains filtered or unexported fields
}

MxDNS provides utilities for checking DNS blocklists.

func NewMxDNS

func NewMxDNS(ipBlocklists []string, domainBlocklists []string) *MxDNS

NewMxDNS creates an MxDNS instance that will check the given blocklists.

func (*MxDNS) CheckDomain

func (m *MxDNS) CheckDomain(domain string) []Blocked

CheckDomain checks if the given domain is on the configured blocklists

func (*MxDNS) CheckIP

func (m *MxDNS) CheckIP(ip net.IP) []Blocked

CheckIP checks if the given IP address is on the configured blocklists and returns a result for each blocklist.

func (*MxDNS) CheckReverse

func (m *MxDNS) CheckReverse(ip net.IP, expectHost string) (fcrdns bool, expectedHost bool)

CheckReverse does both a reverse lookup and a FCRDNS check. The reverse lookup should match expectHost. The reverse lookup should resolve back to the given ip.

func (*MxDNS) IsDomainBlocked

func (m *MxDNS) IsDomainBlocked(domain string) bool

IsDomainBlocked checks if the given domain is on any of the configured blocklists.

func (*MxDNS) IsIPBlocked

func (m *MxDNS) IsIPBlocked(ip net.IP) bool

IsIPBlocked checks if the given IP address is on any of the configured blocklists.