In the "Ticket #39" thread, Dave Crocker asserted the following about the 'p' tag and its values:
"The premise that an author domain owner can, in any way, direct the message disposition decisions of a receiving system is simply false. It's false to a level of silliness, if one adequately considers the complete independence of the receiver from the domain owner. The domain owner can, perhaps, express something about the owner's own concerns for mail that fails dmarc, but that's different from saying anything about the receiver's decisions about how to respond to those expressed concerns. That is, the language expressing the semantics should be changed to be, in a sense, egocentric. How do I, the domain owner feel about (assess) the meaning of a DMARC failure?" Later in that same thread, he proposed the following as possible new language for the description of the 'p' tag and values in section 6.3: *p*: Domain Owner Assessment Policy (plain-text; REQUIRED for policy records). Indicates the severity of concern the domain owner has, for mail using its domain but not passing DMARC validation. Policy applies to the domain queried and to subdomains, unless subdomain policy is explicitly described using the "sp" tag. This tag is mandatory for policy records only, but not for third-party reporting records (see Section 7.1 <https://tools.ietf.org/html/rfc7489#section-7.1>). Possible values are as follows: *none*: The Domain Owner offers no expression of concern. *quarantine:* The Domain Owner considers such mail to be suspicious. It is possible the mail is valid, although the failure creates a significant concern. *reject: *The Domain Owner considers all such failures to be a clear indication that the use of the domain name is not valid. See Section 10.3 <https://tools.ietf.org/html/rfc7489#section-10.3> for some discussion of SMTP rejection methods and their implications. I believe this to be worthy of its own dedicated ticket and discussion, and so have created a ticket specifically for it. -- *Todd Herr* | Sr. Technical Program Manager *e:* [email protected] *p:* 703.220.4153 This email and all data transmitted with it contains confidential and/or proprietary information intended solely for the use of individual(s) authorized to receive it. If you are not an intended and authorized recipient you are hereby notified of any use, disclosure, copying or distribution of the information included in this transmission is prohibited and may be unlawful. Please immediately notify the sender by replying to this email and then delete it from your system.
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