SPF
N/A
发件人策略框架
SPF · N/A · 发件人策略框架 · ess-pee-EF · Sender Policy Framework · Email · email · dns · authenticationEmailSender Policy Framework/ess-pee-EF/
Also known as: Sender Policy Framework
Last updated August 8, 2026
Definition
SPF is an email authentication method where a domain publishes DNS records listing which servers may send mail on its behalf.
Real-World Example
If spam arrives claiming to be from your bank but fails SPF, receiving servers are more likely to quarantine it.
References
Related terms
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