immunecheckpoint-europe.com

This domain is registered for one of our customers.

If this is your domain name, please visit this page to see how to register it as DNS zone into your account.

Note: If you already have registered the DNS zone for your domain name, please wait for DNS propagation. Your web site will be displayed soon. It may take few minutes.

* Do you know what the rDNS is?

Suggested article: What is rDNS?

rDNS, also known as Reverse DNS, is doing the mirror action of the forward DNS, which links the hostname/domain to the IP address. In other words, the rDNS links the IP address to the domain/hostname. This type of DNS service is very useful for email verifications and troubleshooting.

rDNS lookups query DNS servers for a PTR (pointer) record. If the server does not have a PTR record, it cannot resolve a reverse lookup. PTR records store IP addresses with their segments reversed, and they append '.in-addr.arpa' or '.ip6.arpa' to that.

As we already said, the rDNS is very important for the Mailbox provider filtering. A common practice for Mailbox providers is to check for Forwarding Confirmed Reverse DNS records. Many of them, including Gmail and Yahoo, will block email coming from a mail server that does not have rDNS in place.

If you need more information, we recommend you to read the following text about the rDNS!