Sender ID's fading message

C|Net | at | by Mike

At the start of last year, Bill Gates told the world's elite at an annual conference in Davos, Switzerland, that the problem of spam would be solved in two years.

Basically, Sender ID checks whether an e-mail that claims to come from a certain Internet domain (such as "customerservice@anybank.com") really originates from the e-mail servers associated with that domain ("anybank.com"). The system uses the Domain Name System, or DNS, to make that determination. Sender Policy Framework (SPF), which merged with Microsoft's Caller ID for E-mail Technology to become Sender ID, also uses the same approach.