Customers with VPS Servers or dedicated IP addresses in Shared hosting plans can always ask us to configure RDNS or Reverse DNS.
Our VPS servers cannot be used to send bulk emails.
As a protection measure against SPAM, our VPS servers may have port 25 opened and RDNS configured, only after 3 months of their activation. The customer must forward us the justification for us to open such ports, after being an active customer during this period. We reserve the right to refuse enabling port 25 and RDNS, if we find any SPAM or bulk mailing risk in the customer operation.
To configure RDNS for your VPS Servers IP addresses you must open a ticket, asking us to configure, IP address and hostname for each IP.
Here's an example about how to request:
[IP address A] hostname.yourdomain.com
[IP address B] hostname2.yourdomain.com
[IP address C] mail.yourdomain.com
What is a PTR Record or RDNS (Reverse DNS record)?
A PTR record (Pointer record) or rDNS record (reverse DNS record) is the exact opposite of a normal A/AAAA record in the DNS. While an A record answers the question “What IP address belongs to this domain name?” (forward DNS), a PTR record answers the question “What domain name belongs to this IP address?” (reverse DNS). It lives in a special zone called the in-addr.arpa (for IPv4) or ip6.arpa (for IPv6) and is used mainly for security, trust, and verification purposes. For example, when you send an email, most mail servers (Gmail, Outlook, corporate servers) perform a reverse lookup on your sending IP: if there is no valid PTR record or if it doesn’t match your mail server hostname, your email is much more likely to be marked as spam or rejected.
In practice, only the owner of the IP block (your hosting provider, VPS company, or ISP) can create or modify the PTR record — you usually can’t do it yourself from a normal DNS zone editor like Cloudflare or your registrar. A good PTR typically looks like mail.yourdomain.com or vps123.yourdomain.com and should match the forward record (this is called forward-confirmed reverse DNS or FCrDNS), which is now almost mandatory for reliable email delivery.
