PTR record defined — the reverse of an A record
A PTR record maps an IP address back to a hostname — the mirror image of an A record, stored in the special in-addr.arpa zone.
- A record: name → IP. PTR record: IP → name.
- Receiving mail servers require it on sending IPs; its absence causes rejections.
- Forward-reverse alignment matters: the PTR should resolve back to the A record's name.
- Only the IP's owner — your host — can set it.
Senders meeting these rules deliver cleanly to Gmail, Outlook and Indian ISPs alike. Pair it with proper business email hosting for best deliverability.
How reverse DNS resolution works
Set the nameservers at the registrar, then edit records only in the DNS host those nameservers point at. Editing the other panel does nothing. A website and its mail can use different hosts: the A record sends the site, MX sends the mail.
Why email servers demand PTR
How this plays out with reverse DNS (rDNS): settings that look cosmetic usually decide page speed and uptime under real traffic. The defaults WebJi® ships are tuned for Indian network conditions, and support can review your setup on request.
Setting PTR — only your host can, and how to request it
Setting PTR — only your host can, and how to request it. Do the change this heading names on one site first, then check it in a private browser window or in the mail client, depending on the topic. Change one setting at a time, and undo it if the result is wrong before you try the next. If you want the Jaipur desk to look with you, email support@webji.services — that mailbox is staffed 24/7 in Hindi and English. Phone +91 141 4941811 is business hours only.
The forward-reverse alignment rule
How this plays out with PTR-IP alignment: settings that look cosmetic usually decide page speed and uptime under real traffic. The defaults WebJi® ships are tuned for Indian network conditions, and support can review your setup on request.
Testing — dig -x and MXToolbox
On mail server rejection, the honest summary is that defaults matter more than brand names — a well-set budget plan outranks a mis-tuned premium one. WebJi® documents its defaults openly and adjusts them per ticket when workloads need it.
Fixing bounces — the checklist
Work the checklist in order. One: read the bounce — phrases like "no reverse DNS" or "PTR record failure" name the problem directly. Two: test with dig -x your.server.ip +short; an empty reply confirms the missing PTR. Three: confirm forward-reverse alignment — the PTR hostname must resolve back to the same IP via its A record.
Four: request the PTR from your host's support desk with the exact IP and desired hostname; WebJi® sets these on request for VPS and mail IPs. Five: retest after propagation, then send a fresh message. Bounces stop once all four signals agree. Mail-sender infrastructure more broadly is covered on the business email hosting hub.
Frequently Asked Questions
What is a PTR record in DNS?
Work the checklist in order. One: read the bounce — phrases like "no reverse DNS" or "PTR record failure" name the problem directly. Two: test with dig -x your.server.ip +short; an empty reply confirms the missing PTR. Three: confirm forward-reverse alignment — the PTR hostname must resolve back to the same IP via its A record.
What is reverse DNS used for?
How this plays out with reverse DNS (rDNS): settings that look cosmetic usually decide page speed and uptime under real traffic. The defaults WebJi® ships are tuned for Indian network conditions, and support can review your setup on request.
How do I check my PTR record?
A PTR record maps an IP address back to a hostname — the mirror image of an A record, stored in the special in-addr.arpa zone.
Why do emails bounce without a PTR record?
Work the checklist in order. One: read the bounce — phrases like "no reverse DNS" or "PTR record failure" name the problem directly. Two: test with dig -x your.server.ip +short; an empty reply confirms the missing PTR. Three: confirm forward-reverse alignment — the PTR hostname must resolve back to the same IP via its A record. The question here is: Why do emails bounce without a PTR record.
Can I set a PTR record myself in cPanel?
Linux shared and WordPress plans use cPanel. Windows plans use Plesk. The panel login is separate from the client area where you pay invoices and open tickets. If you need a specific panel on a VPS, say so in the quote request to support@webji.services — it is not assumed on every unmanaged server.
What is in-addr.arpa?
A PTR record maps an IP address back to a hostname — the mirror image of an A record, stored in the special in-addr.arpa zone. The question here is: What is in-addr.arpa.
Is WebJi® an Indian company?
Yes. WebJi® is headquartered in Jaipur, Rajasthan and has operated since 2005. Billing, support and governance all run from India.
Do you provide GST invoices?
Every purchase and renewal gets a GST invoice with our GSTIN, and hosting prices are quoted exclusive of 18% GST. Claim input credit as applicable.