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.
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.