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:

MX records of

PTR records


Domain location:


Whois record domain

% []
% Whois data copyright terms
% Information related to ' -'
inetnum: -
netname:        TRUENET-TH
descr:          True Internet Co., Ltd.
descr:          Internet Service Provider
descr:          Bangkok, Thailand.
country:        TH
admin-c:        TIA6-AP
tech-c:         TIA6-AP
remarks:        aggregated 2*/16s
remarks:        ------------------------------------------------
remarks:        This object can only be modified by APNIC hostmaster
remarks:        If you wish to modify this object details please
remarks:        send email to with your organisation
remarks:        account name in the subject line.
remarks:        ------------------------------------------------
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-irt:        IRT-TRUEINTERNET-TH
changed: 20061018
source:         APNIC
irt:            IRT-TRUEINTERNET-TH
address:        14th,27 th, floor ,Fortune Town
address:        1 Ratchadaphisek Road, Din Daeng
address:        Bangkok 10400
admin-c:        TIA6-AP
tech-c:         TIA6-AP
auth:           # Filtered
changed: 20101108
source:         APNIC
address:        1 Fortune Town, 14th, 27th Floor,
address:        Ratchadapisek Road, Din Daeng
address:        Din Daeng, Bangkok 10400.
country:        TH
phone:          +662 6200400
fax-no:         +662 6421557
admin-c:        AC1013-AP
admin-c:        WP1-AP
tech-c:         PY184-AP
tech-c:         RT271-AP
nic-hdl:        TIA6-AP
changed: 20081105
source:         APNIC
changed: 20111114
% This query was served by the APNIC Whois Service version 1.69.1-APNICv1r0 (UNDEFINED)


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