Mail::SpamAssassin::Plugin::RelayCountry - add message metadata indicating the country code of each relay

NAME  SYNOPSIS  DESCRIPTION  REQUIREMENT 

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NAME

RelayCountry − add message metadata indicating the country code of each relay

SYNOPSIS

loadplugin Mail::SpamAssassin::Plugin::RelayCountry

DESCRIPTION

The RelayCountry plugin attempts to determine the domain country codes of each relay used in the delivery path of messages and add that information to the message metadata.

Following metadata headers and tags are added:

X−Relay−Countries _RELAYCOUNTRY_
All untrusted relays. Contains all relays starting from the
trusted_networks border. This method has been used by default since
early SA versions.
X−Relay−Countries−External _RELAYCOUNTRYEXT_
All external relays. Contains all relays starting from the
internal_networks border. Could be useful in some cases when
trusted/msa_networks extend beyond the internal border and those
need to be checked too.
X−Relay−Countries−All _RELAYCOUNTRYALL_
All possible relays (internal + external).
X−Relay−Countries−Auth _RELAYCOUNTRYAUTH_
Auth will contain all relays starting from the first relay that used
authentication. For example, this could be used to check for hacked
local users coming in from unexpected countries. If there are no
authenticated relays, this will be empty.

REQUIREMENT

This plugin uses Mail::SpamAssassin::GeoDB and requires a module supported by it, for example MaxMind::DB::Reader (GeoIP2).

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