NAME

       Mail::MIMEDefang::Net - Network related methods for email filters

DESCRIPTION

       Mail::MIMEDefang::Net are a set of methods that can be called from mimedefang-filter to call network
       related services.

METHODS

       expand_ipv6_address
           Method  that returns an IPv6 address with all zero fields explicitly expanded, any field shorter than
           4 hex digits will be padded with zeros.

       reverse_ip_address_for_rbl
           Method that returns the ip address in the appropriately-reversed format used for RBL lookups.

       relay_is_blacklisted
           Method that returns the result of the lookup (eg 127.0.0.2).  Parameters are the ip  address  of  the
           relay host and the domain of the rbl server.

       email_is_blacklisted
           Method  that  returns  the result of the lookup (eg 127.0.0.2).  Parameters are an email address, the
           domain of the hashbl server, and the type of hashing (MD5 or SHA1).

       is_public_ip4_address $ip_addr
           Returns true if $ip_addr is a publicly-routable IPv4 address, false otherwise

       is_public_ip6_address $ip_addr
           Returns true if $ip_addr is a publicly-routable IPv6 address, false otherwise

       get_mx_ip_addresses $domain [$resolver_object]
           Get IP addresses of all MX hosts for given domain.  If there are no MX hosts, then return A records.

       md_get_bogus_mx_hosts $domain
           Returns a list of "bogus" IP addresses that are in $domain's  list  of  MX  records.   A  "bogus"  IP
           address is loopback/private/multicast/etc.

       get_ptr_record $ip_address [$resolver_object]
           Get PTR record for given IP address.

       relay_is_blacklisted_multi
           Method  that  rerurns  a  hash table with one entry per original domain.  Entries in hash will be: "{
           $domain =<gt" $return }>, where $return is one of SERVFAIL, NXDOMAIN or a list of IP addresses  as  a
           dotted-quad.

       relay_is_blacklisted_multi_count
           Method that returns a number indicating how many RBLs the host was blacklisted in.

       relay_is_blacklisted_multi_list
           Method that returns an array indicating the domains in which the relay is blacklisted.

3.6                                                2025-05-19                           Mail::MIMEDefang::Net(3)