RelayCountry − add message metadata indicating the country code of each relay
loadplugin Mail::SpamAssassin::Plugin::RelayCountry
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.
This plugin requires the GeoIP2, Geo::IP, IP::Country::DB_File or IP::Country::Fast module from CPAN. For backward compatibility IP::Country::Fast is used as fallback if no db_type is specified in the config file.
The following
options can be used in both site-wide ("local.cf")
and user-specific ("user_prefs") configuration
files to customize how SpamAssassin handles incoming email
messages.
country_db_type STRING
This option tells SpamAssassin which type of Geo database to use. Valid database types are GeoIP, GeoIP2, DB_File and Fast.
country_db_path STRING
This option tells SpamAssassin where to find MaxMind GeoIP2 or IP::Country::DB_File database.
If not defined,
GeoIP2 default search includes:
/usr/local/share/GeoIP/GeoIP2−Country.mmdb
/usr/share/GeoIP/GeoIP2−Country.mmdb
/var/lib/GeoIP/GeoIP2−Country.mmdb
/usr/local/share/GeoIP/GeoLite2−Country.mmdb
/usr/share/GeoIP/GeoLite2−Country.mmdb
/var/lib/GeoIP/GeoLite2−Country.mmdb
(and same paths again for −City.mmdb, which also has
country functionality)