Domain Keys for email sender authentication
Posted Jun 22, 2006 14:34 UTC (Thu) by proski
In reply to: Domain Keys for email sender authentication
Parent article: Domain Keys for email sender authentication
PGP signatures certify that the message was signed by a certain person. Domain keys certify that the message was sent from a certain domain. So if you get a DK-authenticated message from email@example.com, you know that foo is actually a Yahoo user.
DK-authenticated spam can be reported to the domain name owners and (if they seem to be spammers) to their ISPs. Non-authenticated spam is reported to the owners of the IP block where the SMTP server was located. It could be argued that the former is more effective.
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