On Tue, May 23, 2023 at 2:24 PM Alex Liu via mailop <mailop@mailop.org> wrote:
> Indeed, an email will only be rejected if it has DMARC setup as reject. > There should be one exception to the rule of waiting till after DATA to check for a DMARC policy, and that's in the case of the following SPF record: "v=spf1 -all" It seems wholly appropriate to reject at MAIL FROM if the RFC5321.From domain publishes an SPF policy that says "This domain is not used to send mail, ever." -- *Todd Herr * | Technical Director, Standards and Ecosystem *e:* todd.h...@valimail.com *m:* 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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