Delivered to internal network by a host with no rDNS

Could you help to understand where find solution for following issue:

  1. I tested email by and on this server there is issue with:

|-1.274|RDNS_NONE|Delivered to internal network by a host with no rDNS
This may indicate you do not have a rDNS configured for your hostname or the rDNS does not match your sending IP|
| — | — |

You’re not fully authenticated

We check if the server you are sending from is authenticated

Your message is not signed with DKIM

DomainKeys Identified Mail (DKIM) is a method for associating a domain name to an email message, thereby allowing a person, role, or organization to claim some responsibility for the message.

But i added DKIM via records

On others servers everything is ok, 10 from 10 points

Can’t understand where need to find and fix

Your IP address 5.******* is associated with the domain 3(NXDOMAIN).
Nevertheless your message appears to be sent from ******
You may want to change your pointer (PTR type) DNS record and the host name of your server to the same value.

Here are the tested values for this check:

  • IP: 5.2********
  • HELO: *******

You need to create a PTR record in your DNS server.


Well, someone needs to create a PTR record, but unless you have your own IP allocation from an RIR or have been delegated an appropriate child zone, it won’t be in your DNS server. You will need to configure the PTR record with whoever runs the rDNS that contains your IP. Usually it is your ISP or hosting provider.


I can do it within hestia panel?

Please re-read what @linkp has said. The explanation is very much clear.

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No you can’t do that it needs the be done via the provider.

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Ok, i see
Need to ask provider do it under his settings

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