DNS

Why is it important to use rDNS service?

by Gia

Did you configure the rDNS zone of your domain properly? Well, if you don’t remember, soon you will know it. Your e-mails will go missing or directly to the SPAM folder. When it’s about configuring your host, it’s not enough to set up only a Forward DNS zone. You need an rDNS zone too. 

From now you have a clue about why it is important to use rDNS service, and it’s not minor! But let’s dig a bit more into the topic.

​​What is rDNS?

The reverse DNS or rDNS is a service that allows the execution of reverse DNS lookups. A forward DNS maps domain names to their corresponding IP addresses. Reverse DNS maps IP addresses to domain names. 

Managed DNS plans usually include rDNS service. If not, providers offer it for you at a cost. What you can do when you have it, it’s to generate a reverse DNS zone. There you will add pointer or PTR records. They are useful to prove the match between the IP addresses and the domain name.

Servers from other enterprises can backtrack the IP address to the domain via the PTR records. This way, they can know everything is legit and be protected from scams. 

​​What is a PTR record?

A pointer or PTR record is a type of DNS record that associates an IP address and the hostname.

Whenever an administrator or a server has to verify if an IP address truly belongs to a specific domain, they execute an rDNS query and look for the PTR records in the reverse DNS zone. In case that the PTR record or records can’t be found, this can provoke an authentication issue and more. For instance, e-mails won’t be delivered correctly, or they will be considered SPAM.

​Why is it important to use rDNS service?

  • Basically, if you don’t set up the rDNS, the e-mail servers of people (clients, other companies, your providers, etc.) who want to send you e-mails won’t be able to verify your domain, and you might not be able to send or receive e-mails. Communication is essential for businesses!
  • It will support your reliability for clients as a legit product or service provider.
  • The rDNS service is very important for IP networks owners because they all need to perform reverse lookups. 
  • E-mails for everybody, but especially for businesses, are a professional way to communicate with clients, a way to close deals, or to get opportunities. Not ensuring that messages are correctly sent or received can really mean a loss for you and your pocket. 

​Best 3 rDNS providers. 

ClouDNS has suitable choices for all businesses sizes. As a reference, see its rDNS Premium S. costs $2.95 monthly. Moreover, its rDNS service is built on Anycast DNS network, meaning speed and security for you!

Constellix offers you a robust infrastructure and a different payment model. It doesn’t charge a subscription, only what you use (pay-per-usage). 

easyDNS is a reliable provider in the market since 1998. It’s easy to use, and its rDNS is available for $24.95 yearly. 

Top Affordable Premium DNS Hosting providers

​Conclusion.

To operate without rDNS is too risky for your business! E-mails that don’t reach their proper destination don’t exist for your clients. Don’t lose! Get a quality rDNS service and prevent problems. Remember that one stitch on time can save you nine later!