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MX Record, SPF record, DKIM record

Comments

17 comments

  • cPRex Jurassic Moderator
    Hey there! I agree with the output from MXtoolbox - I don't see any MX records for the ks subdomain when I checked just now. Is there a particular reason you need all of these configured with an MX record? Unless you plan to send emails from email-user@sub.domain.com, this wouldn't be necessary.
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  • ytian03
    Hi cPRex, The emails will be used by my teammates. I don't know what is wrong. I already put MX record for them. Here are the examples.
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  • cPRex Jurassic Moderator
    Are you configuring these MX records at GoDaddy, or inside the cPanel interface? I see the domain is using the GoDaddy nameservers, so anything configured in cPanel will not be part of the live DNS system.
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  • ytian03
    I am configuring them on GoDaddy. I also have SPF and DKIM but nothing works fine.
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  • ffeingol
    And at GoDaddy "@" means the main domain. If you want to setup MX record for a sub-domain, the 2nd column ("@" in your screen shot) would need to be the sub-domain name ("ks" from this example).
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  • ytian03
    And at GoDaddy "@" means the main domain. If you want to setup MX record for a sub-domain, the 2nd column ("@" in your screen shot) would need to be the sub-domain name ("ks" from this example).

    Hi ffiengol, Is this correct now?
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  • ffeingol
    We can't really tell you if it's "correct" but you now have MX records for the main domain and for 4 sub-domains. You can use tools like
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  • ytian03
    Thank you ffeingol. How about this SPF records? I believe that I must only have 1 on SPF record.
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  • ffeingol
    Hello, Again, these "look" correct, but use mxtoolbox.com. From that tool you can check the MX and then will tell you if there is a DMARC published. They are links just below the result that let you test SPF. You can test DKIM also from that site, but you have to add the selector.
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  • ytian03
    Hello, Again, these "look" correct, but use mxtoolbox.com. From that tool you can check the MX and then will tell you if there is a DMARC published. They are links just below the result that let you test SPF. You can test DKIM also from that site, but you have to add the selector.

    Hi ffeingol, I updated my SPF record and this is what I get. For DMARC, can you help me? I don't know what to put on.
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  • cPRex Jurassic Moderator
    I wouldn't worry about DMARC just yet. Are you able to send messages now how you expect?
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  • ytian03
    I wouldn't worry about DMARC just yet. Are you able to send messages now how you expect?

    Hello cPRex, I can send an email, but it seems that it cannot be received by the recipient. Do you have any idea why is that? Thank you!
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  • cPRex Jurassic Moderator
    If you don't have root access to the server, you'd have to contact the hosting provider to have them check the mail logs. That would show the full email transaction and give you the information about why the messages aren't being received.
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  • ytian03
    If you don't have root access to the server, you'd have to contact the hosting provider to have them check the mail logs. That would show the full email transaction and give you the information about why the messages aren't being received.

    I can send emails now. :) How can I address the DMARC and "undefined" problem?
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  • cPRex Jurassic Moderator
    DMARC is a bit more advanced, and also requires some cooporation from your registrar. You can find more details on that here:
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  • ffeingol
    DMARC is a bit more advanced, and also requires some cooporation from your registrar. You can find more details on that here:

    Your link is correct, but I think you are confusing DNSSEC (needs the registrar) with DMARC (which is just a DNS record). I totally agree that DMARC is more of an advanced topic. Other than being able to publish the DNS record in cPanel, it's really outside the scope of cPanel/WHM.
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  • cPRex Jurassic Moderator
    Bah, I did totally confuse the two, but I knew what I meant in my brain :D
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