What it is
MailHops API uses GeoIP and Reverse DNS to return IP location, distance traveled and host name.
The example response on the right is a JSONP response from the API.
The IP addresses (Hops) were parsed from the Received: headers in an email that I got from Twitter.
As you can see the email went from Twitter to Google then I received it in Denver.
Then you can do cool stuff like map the route of the email or add filtering rules. Say, spam messages that are routed through China.
View Google Map with Sidebar | View Bing Map with Sidebar
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