You Should Use Your Own DNS Server With Spamhaus

If you’re running your own small mail server it’s quite possible that you’ll want to make use of Spamhaus’ free DNSBL to reduce spam email. However, if you are using your web host’s DNS servers (which is the default) it’s likely that Spamhaus will not work because the DNS will have exceeded the free usage …

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IP-to-Country DNS Mapping Service

Want to block email from specific countries? Want to check a visitor’s country within your PHP script? It’s all quite easy using this free IP-to-country DNS mapping service!