- SPF:
- Sender Policy Framework
[…] a domain may explicitly authorize the hosts that are allowed to use its domain name, and a receiving host may check such authorization.
https://datatracker.ietf.org/doc/html/rfc4408
Infosec encyclopedia entry
[…] a domain may explicitly authorize the hosts that are allowed to use its domain name, and a receiving host may check such authorization.
https://datatracker.ietf.org/doc/html/rfc4408
By jean-christoph
March 11, 2022