DomainKeys Identified Mail
- A specification for cryptographically signing e-mail messages, permitting a signing domain to claim responsibility for a message in the mail stream
- Message recipients can verify the signature by querying the signer’s domain directly to retrieve the appropriate public key and can thereby confirm that the message was attested to by a party in possession of the private key for the signing domain
- Proposed Internet Standard RFC 6376
- Has been widely adopted by a range of e-mail providers and Internet Service Providers (ISPs)
Relevant Note(s): Sender Policy Framework