[NTLUG:Discuss] All non-US IP list?

[Kenneth Loafman]

Try http://blackholes.us and you can find country lists, company lists,
etc.  It works and I've used it successfully.

...Ken

. Daniel wrote:
> This is something of a follow-up on the previous discussion of blocking all 
> chinese and korean IPs at the greylist filter.
> 
> I have followed the advice of list members here suggesting that I use 
> spamassassin and rank the values of emails from certain countries higher.  
> And that has certainly helped in one regard: The email is trapped and 
> scanned on my MailScanner machine.  But let me tell you, while that is 
> certainly effective, it's not enough.
> 
> Recently, I have been seeing emails coming from more countries than I can 
> list in that particular set of rules.  Further, the sheer amount of email 
> coming in and being processed is simply killing my server.  (Yes, I need a 
> bigger server... maybe one day but not today.)  At some point, the box 
> simply stops sending email on to my exchange server for reasons I have been 
> unable to detect.  The sendmail queue just says "sending" and nothing is 
> sent.  Rebooting the machine clears it up until the next time it gets 
> congested like that.
> 
> Previously someone wrote a little perl script for me to parse through some 
> IP addresses for china and korea in a way that is suitable for relaydelay.  
> Obviously, this will help but isn't going to fix the larger problem.  Where 
> before the majority of such traffic was coming from those two areas, now 
> it's coming from all of Europe and South American countries.
> 
> I've been googling for lists of non-US IP addresses and there is no 
> shortage of discussion on the topic.  (A lot of people offering what a bad 
> idea it is and all that but without stating WHY it's a bad idea... not 
> offering a scenario where it could be bad.)  In my case, this is a business 
> that does business exclusively in Texas and exclusively for schools.  There 
> is absolutely no business reason for incoming mail from outside Texas, let 
> alone outside of the U.S.
> 
> If only I could get a list of non-US IP addresses, I would be a happier man.
> 
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