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Dmarc authentication

Discussion in 'General Discussion' started by kevinf2594, Apr 17, 2014.

  1. kevinf2594

    kevinf2594 Registered

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    I have problems setting the dmarc i'm using this format

    "v=DMARC1; p= quarantine; rua=mailto:dtes@dtes.ec"

    but when i test it the dmarc does not appear in the original message in gmail.


    is it a problem with the format of the dmarc i'm using ?
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello :)

    There is no native support for DMARC at this time, but you can try manually adding the required TXT record. Google offers some instructions on this here:

    https://support.google.com/a/answer/183895

    Thank you.
     
  3. jimlongo

    jimlongo Well-Known Member

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    After some experimenting I found that in the WHM DNS Zone Editor you need to set the domain to _dmarc the RR to TXT and input the dmarc record something like (without escaping any ; or @)
    Code:
    "v=DMARC1;p=none;pct=100;rua=mailto:serveradmin@mydomain.com;ruf=mailto:serveradmin@mydomain.com"
    

    To test you have the proper structure you can check with

    $ dig +short txt _dmarc.mydomain.com
    should return
    Code:
    "v=DMARC1\;p=none\;pct=100\;rua=mailto:serveradmin@mydomain.com\;ruf=mailto:serveradmin@mydomain.com"
    
    or

    $ nslookup
    > set type = TXT
    > _dmarc.mydomain.com

    will return something like
    Code:
    _dmarc.mydomain.com	text ="v=DMARC1\;p=none\;pct=100\;rua=mailto:serveradmin@mydomain.com\;ruf=mailto:serveradmin@mydomain.com"
    Read the documentation at this page
     
  4. cPanelPeter

    cPanelPeter Technical Analyst III
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    Twitter:
    Hello,

    Glad you figured it out and thank you for updating this thread with your outcome/solution.
    If you haven't already, please consider voting for this option in feature requests.
     
  5. nootkan

    nootkan Well-Known Member

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    I found this http://www.inmotionhosting.com/supportemail/fighting-spam/dmarc-setup tutorial where it says to use this in the text field: "v=DMARC1; p=quarantine; sp=none; ruf=mailto:example@mydomain.com; rf=afrf; pct=100; ri=86400" which is different than the one you used. How do I know which is right for my domain/server?
     
  6. cPanelMichael

    cPanelMichael Forums Analyst
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  7. nootkan

    nootkan Well-Known Member

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    So that link says to use both rua and ruf, correct?
     
  8. cPanelMichael

    cPanelMichael Forums Analyst
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    nootkan likes this.
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