SMTP Valid Hostname: Reverse DNS is not a valid Hostname

Akash Kumar

• April 13, 2017 03:15

Hi, I was testing at mxtoolbox, seems something is wrong it saying Reverse DNS is not a valid Hostname i was able to setup most part but still all emails going to SPAM, for Gmail, Hotmail I have setup mail.domain.com as hostname in Cpanel and domain.com as an account and both pointed to same IP address or Reverse DNS. is this reason emails going to SPAM ? should i point to both domain addresses to different IP addresses and Reverse DNS ? Please guide Regards

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  Akash Kumar

  • April 13, 2017 10:40

  YESSS, add additional IP for mail.domain.com solve problem.

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  cPanelMichael

  • April 13, 2017 15:16

  I have setup mail.domain.com as hostname in Cpanel and domain.com as an account and both pointed to same IP address or Reverse DNS.

  
  Hello, You'd generally want to use something other than "mail.domain.tld" as your server's hostname, as an alias for "mail" is automatically configured domains added to cPanel accounts for use with the Domain TLS functionality: What is Domain TLS - cPanel Knowledge Base - cPanel Documentation Change in mail. alias behavior for Apache server Also, please see the following threads regarding the warning message you noticed at MxToolBox: Major Issues with Email Thank you.

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