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  • Reverse DNS?

    What does a "reverse DNS request" mean? And what does it do on a VPS server?

  • #2
    A reverse DNS request is the same on a VPS as it is on a regular server. A VPS is a Virtual Private Server. Being it acts just like a normal server there is no difference if a reverse lookup is done. When you do a reverse lookup you resolve and ip to a hostname the opposite when you do a forward lookup. Anytime you go to a website you do a forward lookup reverse is the opposite. Tons of email servers block servers that do not have a reverse entry like other people previously said. This is basically because of spammers.

    Regards,
    Dexter

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    • #3
      Hey Nikhil,

      A reverse DNS lookup is a DNS query for the domain name associated with a given IP address. This accomplishes the opposite of the more commonly used forward DNS lookup, in which the DNS system is queried to return an IP address.
      Reverse DNS is mainly used to track the origin of a website visitor, the origin of an e-mail message, etc. It is usually not as critical as the classic DNS, visitors will reach the website even without the presence of reverse DNS for the IP of the webserver or the IP of the visitor.


      Regards,
      Mrudul.

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      • #4
        A reverse DNS lookup is a DNS query for the domain name associated with a given IP address. This accomplishes the opposite of the more commonly used forward DNS lookup, in which the DNS system is queried to return an IP address.

        There are many security measures that your domain needs to pass in order for your emails to reach your clients' inboxes. Reverse DNS is the biggest deliverability killer, as almost all mail servers use this method to verify incoming domains.

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