What is the correct reverse DNS for a reseller using a private shared IP?

WebHostPro

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Jul 28, 2002
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A reseller account normally uses the server hostname for the PTR reverse dns but when the reseller uses a shared dedicated IP for the reseller main account and the accounts under it. What is the correct reverse DNS for that dedicated shared IP?

I have tried to point it to the server hostname and the main reseller account domain but both have an error in cPanel.

Code:
To fix this problem, contact your system administrator and request that they replace all PTR records for “123.123.123.1” with the following record at “ns1.webhost.tld” and “ns2.webhost.tld”:

Suggested “PTR” (PTR) Record PTR
Name
 
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cPanelMichael

Technical Support Community Manager
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Apr 11, 2011
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Hello @WebHostPro,

Can you browse to the Domains and IPs tab in WHM >> Exim Configuration Manager >> Basic Editor and confirm how the following options are configured?

Send mail from the account’s IP address
Reference /etc/mailhelo for custom outgoing SMTP HELO
Reference /etc/mailips for custom IP on outgoing SMTP connections


Additionally, can you confirm if this server uses a 1:1 NAT setup?

Thank you.