OP address used for HELO

papazetis

• March 17, 2017 05:48

Hello. How can I fix the smtp banner to contain the Hostname and not my IP Address. I am using WHM 62.0 (build 16) and Roundcube for sending my emails.

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  Jcats

  • March 17, 2017 11:46

  Hello, Do you have a valid rDNS setup on the IP? You can check using dig in SSH:
  # dig -x 172.217.8.174 +short
  Replace with your IP. If it is, its possible you have the following option checked in WHM > Exim Configuration Reference /etc/mailhelo for outgoing SMTP HELO If yes, go into /etc/mailhelo and make sure its set up properly like so: *: server.hostname.com or whatever is set as your rDNS

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  papazetis

  • March 17, 2017 12:07

  Yes I have setup rDNS correctly. My hostname is set to the the same I get from "dig -x". Exim Configuration is like this 45771 And I change /etc/mailhelo to my server rDNS but I am still getting the same error

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  Jcats

  • March 17, 2017 13:59

  Most likely a false positive then, as long as your server hostname is setup properly along with the rDNS, I don't see why you would be having this problem. Can you send yourself a test email and check the headers of the email then check the HELO manually, does it show an IP?

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  papazetis

  • March 17, 2017 14:38

  Yes it shows my server's IP in HELO

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  cPanelMichael

  • March 17, 2017 18:06

  Hello, Could you verify if the issue persists when temporarily disabling the "Introduce a delay into the SMTP transaction for unknown hosts and messages detected as spam" option in "WHM >> Service Configuration >> Exim Configuration Manager >> Basic Editor"? I've seen reports that this option prevents third-party utilities such as MXToolBox from completing a check of the RDNS entry. Thank you.

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  papazetis

  • March 17, 2017 19:11

  Thank you for your support. I just fix it. The problem was with RoundCube. I change the $config['smtp_helo_host"> to point to my rDNS.

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