An Anti-spam Software Plugin For E-Mail Classification Based On Geographical Location Of The Sender

Abstract

Every e-mail sent must be transferred by one or more mail servers. Some of these servers are connected to the Internet using a public IP address. IP addresses can be geographically located, e.g., using geolocation databases. This means e-mails can be classified by the location of the sender. This paper introduces an anti-spam plugin for such classification. The plugin is implemented for SpamAssassin anti-spam software. The basic functionality was implemented. By using this plugin, one can define a penalty score for specific countries as e-mail origins.