Yes, mainly for brand/domain protection. We see spammers co-opt domains all the time that are widely recognized but not normally used for mail. I've told people in the past to do this for domains that they own that should never send mail, especially lookalike or spoof domains that you own for brand protection. See a0l.com for example:
a0l.com. 3578 IN TXT "v=spf1 -all" _dmarc.a0l.com. 3559 IN TXT "v=DMARC1\; p=reject\; fo=1\; rua=mailto:a...@rua.agari.com\; ruf=mailto:a...@ruf.agari.com"; On Fri, Sep 30, 2016 at 9:55 AM, Mitchell Kuch via dmarc-discuss < dmarc-discuss@dmarc.org> wrote: > Hello - > > Does it make sense to publish a DMARC record to signal that a host > should never send email? Can said record be published without an > accompanying DKIM record? > > Thanks, > - - Mitchell > > > v=spf1 -all > v=DMARC1; p=reject; rua=mailto:mailreports@test.example; > ruf=mailto:mailreports@test.example; fo=0; adkim=s; aspf=s; pct=100; > rf=afrf; ri=1; sp=reject > _______________________________________________ > dmarc-discuss mailing list > dmarc-discuss@dmarc.org > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well > terms (http://www.dmarc.org/note_well.html) > -- PAUL ROCK Principal Software Engineer | AOL Mail P: 703-265-5734 | C: 703-980-8380 AIM: paulsrock 22070 Broderick Dr.| Dulles, VA | 20166-9305
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