A tool that could help in the battle against spam and phishing attacks has received industry approval.

The DomainKeys Identified Mail (DKIM) system is a method of validating the identity of the sender of an e-mail.
Spammers hide their identity by using a false, or spoofed, address in the millions of messages they send out. DKIM uses encrypted digital signatures to prove a message's origin and a draft standard has been accepted by the Internet Engineering Task Force (IETF).

source/full story BBC NEWS