The Community Forums

Interact with an entire community of cPanel & WHM users!
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

How do I prevent host lookup failed messages

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

  1. asmithjr

    asmithjr Well-Known Member

    Joined:
    Jun 13, 2003
    Messages:
    475
    Likes Received:
    1
    Trophy Points:
    18
    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.
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    30,764
    Likes Received:
    662
    Trophy Points:
    113
    cPanel Access Level:
    Root Administrator
  3. asmithjr

    asmithjr Well-Known Member

    Joined:
    Jun 13, 2003
    Messages:
    475
    Likes Received:
    1
    Trophy Points:
    18
    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 ..."
     
  4. asmithjr

    asmithjr Well-Known Member

    Joined:
    Jun 13, 2003
    Messages:
    475
    Likes Received:
    1
    Trophy Points:
    18
    also, this only seems to be from this sender at [Removed]
     
    #4 asmithjr, Dec 22, 2015
    Last edited by a moderator: Dec 22, 2015
  5. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    30,764
    Likes Received:
    662
    Trophy Points:
    113
    cPanel Access Level:
    Root Administrator
    Have you contacted your provider to request they configure RDNS for the IP address used to send email?

    Thank you.
     
Loading...

Share This Page