Ook Bill Gates heeft geregeld last van ongewenste e-mails, waarin hem wordt aangeboden op snelle en eenvoudige wijze zijn vermogen te verhogen: "Like almost everyone, I receive a lot of spam every day, much of it offering to help me get out of debt or get rich quick. It's ridiculous." . In dit document op de site van Microsoft gaat hij dieper in op de achterliggende problematiek die komt kijken bij de bestrijding van spam en hoe de softwaregigant deze de komende jaren zal proberen te omzeilen. De basis hiervan zullen adaptieve systemen zijn die ongewenste e-mails zo vroeg mogelijk in hun traject de nek omdraaien. Met behulp van machine-learning technieken moeten deze systemen zich niet alleen aanpassen aan de voorkeuren van gebruikers, maar ook aan de steeds veranderende, slinkse taktieken van spammers. Daarnaast dient de overdaad aan inbox-vulling eveneens op hoger niveau in de infrastructuur van internet te worden gestopt, aldus dhr. Gates:
Government and industry working together also can put an end to spammers' deceptive practices. Spammers go to great lengths to conceal or "spoof" their identities. They relay their mail through multiple servers to hide its origins. They open multiple accounts and change to new ones frequently to avoid drawing the attention of service providers, and to improve the chances of their mail passing through spam filters. They lure unsuspecting readers by faking sender addresses - ones that appear to be someone inside the recipient's company, for example.
Microsoft is working with others in the industry to identify and restrict mail that conceals its source. For example, we are working toward a system to verify sender addresses, much as recipients' addresses are verified today. The Internet addresses for all incoming mail servers are published as part of the Domain Name System, the Internet's distributed directory. That's how mail gets to the right destination. If domain administrators could also publish the addresses of their outgoing mail servers, then the receipt of a suspected forgery could trigger a relatively simple, automated verification process. Incoming servers would then be able to confirm whether senders are who they say they are.
