PTR record

PTR record | PTR record of IP address | DNSBL check

 
 

PTR record is commonly needed for the mail servers. Every mail server has own DNS A record, that points to an ip address, but not all ip addresses have reverse PTR record. If you do not have PTR records, probably your mail will be rejected from other mail servers. Usually you can't create a PTR record yourself, because you are not a owner of ip addresses, just domain names. But you can ask your service provider to create PTR records, or delegate this possibility to you.

The best way is to make a reverse DNS PTR record same as DNS host A record for your mail server. Please scroll down this page to see some examples how to check DNS PTR record manually.

You can check PTR record using this page. Your mail servers will be automatically detected. This tool will not check PTR record of individual IP address. To do it, please use this page.

PTR record check:
 
 

Domain location:

 
 

 175.44.6.226  201.65.185.98  61.91.115.226  84.182.97.28  174.143.210.216  31.44.11.102  113.7.247.3  84.126.223.26  117.82.181.183  117.213.133.189  77.126.133.187  fviagra-online.com  124.239.159.101  222.160.201.7  110.205.33.53

Check DNS PTR record using nslookup:

C:\Windows\System32>nslookup
Standaardserver:  srv.bazan.nl
Address:  192.168.2.11

> set type=all
> ptrrecord.net
Server:  srv.bazan.nl
Address:  192.168.2.11

Niet-bindend antwoord:
ptrrecord.net   internet address = 109.70.7.12
ptrrecord.net   nameserver = ns-01.svc.xl-internetservices.com
ptrrecord.net   nameserver = ns-02.svc.xl-internetservices.com
ptrrecord.net   nameserver = ns-03.svc.xl-internetservices.com
ptrrecord.net
        primary name server = ns-01.svc.xl-internetservices.com
        responsible mail addr = hostmaster.xl-internetservices.com
        serial  = 2012060501
        refresh = 10800 (3 hours)
        retry   = 2400 (40 mins)
        expire  = 604800 (7 days)
        default TTL = 86400 (1 day)
ptrrecord.net   MX preference = 10, mail exchanger = mail.ptrrecord.net

ns-01.svc.xl-internetservices.com       internet address = 194.60.207.54
ns-02.svc.xl-internetservices.com       internet address = 194.60.207.55
ns-03.svc.xl-internetservices.com       internet address = 79.170.92.6
mail.ptrrecord.net      internet address = 83.117.170.114
> set type=ptr
> 83.117.170.114
Server:  srv.bazan.nl
Address:  192.168.2.11

114.170.117.83.in-addr.arpa     name = s5375aa72.adsl.wanadoo.nl
117.83.in-addr.arpa     nameserver = ns.euro.net
117.83.in-addr.arpa     nameserver = ns.euronet.nl
117.83.in-addr.arpa     nameserver = ns.ripe.net
>

Check DNS PTR record using host

[root@ptr ~]# host -t MX ptrrecord.net
ptrrecord.net mail is handled by 10 mail.ptrrecord.net.

[root@ptr ~]# host mail.ptrrecord.net
mail.ptrrecord.net has address 83.117.170.114

[root@ptr ~]# host -t PTR 83.117.170.114
114.170.117.83.in-addr.arpa domain name pointer s5375aa72.adsl.wanadoo.nl.

Check PTR record using Dig

[root@ptr ~]# dig -t MX ptrrecord.net

; <<>> DiG 9.3.4-P1 <<>> -t MX ptrrecord.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27176
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 1

;; QUESTION SECTION:
;ptrrecord.net.                 IN      MX

;; ANSWER SECTION:
ptrrecord.net.          3411    IN      MX      10 mail.ptrrecord.net.

;; AUTHORITY SECTION:
ptrrecord.net.          89896   IN      NS      ns-01.svc.xl-internetservices.com.
ptrrecord.net.          89896   IN      NS      ns-02.svc.xl-internetservices.com.
ptrrecord.net.          89896   IN      NS      ns-03.svc.xl-internetservices.com.

;; ADDITIONAL SECTION:
mail.ptrrecord.net.     3411    IN      A       83.117.170.114

;; Query time: 19 msec
;; SERVER: 85.17.41.228#53(85.17.41.228)
;; WHEN: Tue Jun  5 20:01:52 2012
;; MSG SIZE  rcvd: 155

[root@ptr ~]# dig -x 83.117.170.114

; <<>> DiG 9.3.4-P1 <<>> -x 83.117.170.114
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 551
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4

;; QUESTION SECTION:
;114.170.117.83.in-addr.arpa.   IN      PTR

;; ANSWER SECTION:
114.170.117.83.in-addr.arpa. 5373 IN    PTR     s5375aa72.adsl.wanadoo.nl.

;; AUTHORITY SECTION:
117.83.in-addr.arpa.    80500   IN      NS      ns.euronet.nl.
117.83.in-addr.arpa.    80500   IN      NS      ns.euro.net.
117.83.in-addr.arpa.    80500   IN      NS      ns.ripe.net.

;; ADDITIONAL SECTION:
ns.euro.net.            75562   IN      A       194.134.0.12
ns.ripe.net.            10885   IN      A       193.0.9.6
ns.ripe.net.            10885   IN      AAAA    2001:67c:e0::6
ns.euronet.nl.          82016   IN      A       194.134.0.67



 

Our sponsors