[dmarc-discuss] DMARC report to external domain

Randal Pinto randal at redsift.io
Thu Feb 22 00:39:34 PST 2018


Yes, you can have as many domains as you want reporting to that domain.

Randal 

> On 22 Feb 2018, at 01:24, <BoonHai.Yeo at infineon.com> <BoonHai.Yeo at infineon.com> wrote:
> 
> Sorry, typo.
>  
> domain1.com._report._dmarc.domain3.com. TXT "v=DMARC1"
> domain2.com._report._dmarc.domain3.com. TXT "v=DMARC1"
>  
>  
> <image002.jpg>
>  
> Thanks.
>  
> Regards,
> YEo
>  
> From: Yeo Boon Hai (IFMY IT OS IUC M) 
> Sent: Thursday, 22 February, 2018 9:23 AM
> To: 'Randal Pinto' <randal at redsift.io>; Vladimir Dubrovin <dubrovin at corp.mail.ru>
> Cc: dmarc-discuss at dmarc.org
> Subject: RE: [dmarc-discuss] DMARC report to external domain
>  
> Hi all,
>  
> Thank you for the sample.
> If I have more than 1 domains that need to send to same domain admin so can I have multiple entries like below?
>  
> domain1.com._report._dmarc.domain2.com. TXT "v=DMARC1"
> domain2.com._report._dmarc.domain2.com. TXT "v=DMARC1"
>  
>  
> <image003.jpg>
>  
> Thanks.
>  
> Regards,
> Yeo
>  
>  
> From: Randal Pinto [mailto:randal at redsift.io] 
> Sent: Wednesday, 21 February, 2018 6:40 PM
> To: Vladimir Dubrovin <dubrovin at corp.mail.ru>
> Cc: Yeo Boon Hai (IFMY IT OS IUC M) <BoonHai.Yeo at infineon.com>; dmarc-discuss at dmarc.org
> Subject: Re: [dmarc-discuss] DMARC report to external domain
>  
> You are correct Vladimir, I got the numbering incorrectly when trying to craft the example.
>  
> On 21 February 2018 at 10:07, Vladimir Dubrovin <dubrovin at corp.mail.ru> wrote:
> 
> It's incorrect. If you want reports for domain1.com are sent to e-mail address in domain2.com, domain2.com must publish a record
> 
> domain1.com._report._dmarc.domain2.com. TXT "v=DMARC1"
> 
> to indicate it's willing to receive the reports for domain1.com
>  
> 
> 
> 21.02.2018 12:51, Randal Pinto via dmarc-discuss пишет:
> Hello Yeo,
>  
> If you want domain1.com to report to domain2.com you have to add the following DNS entry to domain1.com:
>  
> Name: domain2.com._report._dmarc
> Value: "v=DMARC1;"
>  
> This will authorise domain2.com to receive DMARC reports on behalf of domain1.com
>  
> Best,
> Randal
>  
>  
> On 21 February 2018 at 09:29, Yeo via dmarc-discuss <dmarc-discuss at dmarc.org> wrote:
> Hi all,
>  
> I would like to change the DMARC report to my another domain IT support to check.
> After I changed, I noticed it failed the DMARC external validation. L
>  
> When a report generator has an aggregate report to send to example.com, it will consult example.com‘s DMARC record and extract the address above. Since the domain in that address is not example.com or its organizational domain, it would have to make an authorization check first. It would take that domain the report is for (example.com), and the domain that the rua field references (otherdomain.com), and construct a new name like this:
>  
> “example.com._report._dmarc.otherdomain.com”
>  
> May I know how to create the this DNS record? Any sample?
>  
> Thanks.
>  
> Regards,
> Yeo
>  
> 
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> 
>  
> --
> Randal Pinto
> Founder & COO
> +447703108205
> @randalpinto
>  
> Red Sift powers OnDMARC
> 5th Floor, 43 Whitfield Street, W1T 4HD, London, UK.
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> NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
>  
> 
> -- 
> Vladimir Dubrovin
> @Mail.Ru
> 
> 
>  
> --
> Randal Pinto
> Founder & COO
> +447703108205
> @randalpinto
>  
> Red Sift powers OnDMARC
> 5th Floor, 43 Whitfield Street, W1T 4HD, London, UK.
>  
> News: OnDMARC wins Cyber Security Start-Up of the Year | OnDMARC joins G-Cloud 9
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