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How do I prevent host lookup failed messages

Discussion in 'E-mail Discussion' started by asmithjr, Dec 22, 2015.

  1. asmithjr

    asmithjr Well-Known Member

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    I have accounts that are not getting their emails. I see messages like host lookup failed (116.199.219.46 does not match any IP address for mail.theiremailhost.co.nz)

    I've put the IP in Sender verification bypass IP addresses but that does not help. i also put the emails in *@theirmailhost.co.nz and *@mail.theirmainhost.co.nz into the whitelist in theirSpamAssassin settings.
     
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  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Hello :)

    Please let us know if the following thread is helpful:

    Reverse DNS Lookup

    Thank you.
     
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  3. asmithjr

    asmithjr Well-Known Member

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    I do have that in my exim.conf but I also see it has message = Your mail server IP address ($sender_host_address) has no reverse DNS PTR

    That is not the message I see in the email Trace stats I see "host lookup failed ... does not match any IP address for ..."
     
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  4. asmithjr

    asmithjr Well-Known Member

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    also, this only seems to be from this sender at [Removed]
     
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    #4 asmithjr, Dec 22, 2015
    Last edited by a moderator: Dec 22, 2015
  5. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Have you contacted your provider to request they configure RDNS for the IP address used to send email?

    Thank you.
     
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