Caveat
The ADSP specification explicitly discourages publishing a record different from "unknown" for domains who have independent users and a usage policy that does not explicitly restrict them to sending mail only from designated mail servers, since mail sent independently of the organization will not be signed.
However explicitly that caveat is worded, it is not straightforward to understand the purpose and the limitations of ADSP. One of ADSP authors holds that it is better to publish private lists of discardable domains, maintained by competent people, rather than letting each domain state their policy. Recognizing that the spec has shipped an untested prototype, the author of a popular ADSP implementation has proposed to downgrade ADSP to experimental status.
Read more about this topic: Author Domain Signing Practices
Famous quotes containing the word caveat:
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—Administration in the State of Arka, U.S. public relief program (1935-1943)