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

% This is the RIPE Database query service.
% The objects are in RPSL format.
% The RIPE Database is subject to Terms and Conditions.
% See
% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.
% Information related to ' -'
% Abuse contact for ' -' is ''
inetnum: -
netname:        ONO
descr:          PROVIDER Local Registry
country:        ES
admin-c:        OIM1-RIPE
tech-c:         OIM1-RIPE
status:         ASSIGNED PA
mnt-by:         ONO-MNT
created:        2006-11-29T11:59:45Z
last-modified:  2010-08-26T11:21:21Z
source:         RIPE
address:        Avenida de América 115
address:        E-28042 Madrid
address:        SPAIN
phone:          +34 607 13 33 33
nic-hdl:        OIM1-RIPE
mnt-by:         ONO-MNT
created:        2002-09-25T09:49:21Z
last-modified:  2016-04-08T07:13:46Z
source:         RIPE # Filtered
% Information related to ''
descr:          VODAFONE ONO
descr:          Avenida de América 115
descr:          E-28042 Madrid
descr:          SPAIN
descr:          C-LEGACY
origin:         AS12357
mnt-by:         ONO-MNT
mnt-by:         COMUNITEL-MNT
created:        2016-05-18T11:07:13Z
last-modified:  2016-05-18T11:07:13Z
source:         RIPE
% This query was served by the RIPE Database Query Service version 1.89.2 (BLAARKOP)


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