looking for a ready-made list of non-us ip addresses... either in csv format for import or straight text (ip tab subnet, per line). this is for importing into a spam filter.
our company doesnt currently do any business with anyone who should be sending from an oversea mail server, and we're ok taking the risk that one or two legit emails will be blocked (we can retrieve it later).
we're using ORF from www.vamsoft.com
and i'm sick of going thru the log by hand, just to find that 90% of the spam that still gets thru, is from other countries.
a sample straight text file that could be imported is like this:
the formatting may look messed up here, but its ip [tab] subnet [enter]
i'm ok understanding subnetting, ranges, etc... and i'm ok blocking 18 million ip addresses too... is there something i can just copy/paste rather than sit on www.dnsstuff.com
all day and look up every range?
it gets complicated doing that because 220.127.116.11 might be US, but 18.104.22.168 might be taiwan. i wish it was more organized, where the first octet indicated country... or something... but i realize how not possible that really is.
p.s. i understand that not all overseas people or ISPs send spam... but most of what we get is from overseas and i'm ok blocking all non-us servers. if thats prejudicial, whatever... to each his own...