Mail::MIMEDefang::Net - Man Page

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.

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.

Referenced By

Mail::MIMEDefang(3).

2022-08-24 3.1 Mail::MIMEDefang::Net Documentation