Hello,
There is a DNSBL maintained by bit.nl that allows you to block countries
with relative ease.
URL: https://noc.bit.nl/dnsbl/ascc/
IE: cn.ascc.dnsbl.bit.nl
This zone contains data regarding the ISO3166 countrycode and BGP
Autonomous System for any given IPv4 or IPv6 address. Every wednesday,
RIR allocation statistics are downloaded for the RIPThis zone contains
data regarding the ISO3166 countrycode and BGP Autonomous System for any
given IPv4 or IPv6 address. Every wednesday, RIR allocation statistics
are downloaded for the RIPE, ARIN, APNIC, LACNIC and AFRINIC regions and
this data is combined with a route-dump of the default free zone, as
seen from AS12859.E, ARIN, APNIC, LACNIC and AFRINIC regions and this
data is combined with a route-dump of the default free zone, as seen
from AS12859.
Thanks,
Matthew
On 11/20/2019 10:51 PM, merr...@fn.de wrote:
We did get a lot of spam messages from Chinese providers. We speak not
Chinese, do you think if it is possible to reject all mails from
China? Thanks