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Changes to MX records that I didn't make?

Discussion in 'E-mail Discussions' started by Jeffro_Home, Mar 24, 2015.

  1. Jeffro_Home

    Jeffro_Home Registered

    Sep 3, 2008
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    I had a customer contact me today stating that he hasn't had email for 4 days (since some point on Friday, March 20, 2015).

    I checked the MX records (he uses Rackspace for email) and the MX records were somehow changed (for all three accounts on my server using Rackspace).

    Previously they were correct, and the customer had no email issues:

    Now they showed:


    On the day the issue happened, I see this in my log:
    zone '' has no address records (A or AAAA): 2 Time(s)
    zone '' has no address records (A or AAAA): 2 Time(s)

    I use Softlayers DNS. So I am not sure if something happened on their end, or something happened on my WHM server.

    I am very concerned of it happening again.

    Any help would be appreciated.


    Edit: it appears I missed the trailing "." after I had set the MX entries in WHM. I had just setup DNS clustering to update Softlayer's records on Thursday, so apparently these MX entries were appended with the host name when DNS synchronized.
    #1 Jeffro_Home, Mar 24, 2015
    Last edited: Mar 24, 2015
  2. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Apr 11, 2011
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    Root Administrator

    Yes, it's important to use periods after the entries to avoid having the domain name appended to the end of the entry.

    Thank you.

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