`mx.mac21.co.jp`

	DNSSEC	⚠️ Not signed
	A	153.122.206.94^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}

`mac21.co.jp`

	DNSSEC	⚠️ Not signed
	A	153.122.205.46^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
	NS	`ns2.namedserver.net` ⭐
	NS	`ns.namedserver.net`
	MX	`mx.mac21.co.jp` ⭐
	TXT	`v=spf1 include:_spf.shared-server.net ~all`
	SOA	`ns.namedserver.net`root@namedserver.net serial=2698671201

MX for

mac21.co.jp

Same first word

mx.co

mx.ro

mx.com.kz

mx.ru.net

mx.firewall-gateway.de

mx.mayfirst.org

mx.ag

mx.ee

mx.net.ru

mx.fi

mx.cz

mx.co.kr

mx.net

mx.box

mx.homelinux.com

mx.dnsalias.com

mx.se

mx.srv.br

mx.si

mx.de

mx.org.ua

mx.nl

mx.com

mx

mx.org

mx.net.au

mx.sb

mx.sub.jp

mx.nf

mx.kg

mx.fm

mx.dk

mx.mil.lv

mx.is

mx.ac.cn

mx.uz

mx.mt

mx.lt

mx.co.at

mx.ua

mx.csb.app

mx.au

mx.go.gov.br

mx.com.mx

mx.dev

mx.su

mx.com.au

mx.123hjemmeside.no

mx.cl

mx.by

mx.bplaced.net

mx.uy

mx.dyndns-mail.com

mx.io

mx.co.ke

mx.vg

mx.gp

mx.gs

mx.global.prod.fastly.net

mx.com.pt

mx.ru

mx.services

mx.pl

mx.ht

mx.uk

mx.no

mx.cloud.nospamproxy.com

mx.agency

mx.rs

mx.vc

mx.cloudflare.net

mx.ws

mx.plus

mx.zone

mx.co.za

mx.tours

mx.s3.amazonaws.com

mx.com.tw

mx.vu

mx.biz

mx.ms

mx.network

mx.se.gov.br

mx.gy

mx.pe

mx.realm.cz

mx.tn

mx.exchange

mx.kh.ua

mx.md

mx.to

mx.cm

mx.graphics

mx.cx

mx.support

mx.myftp.org

mx.duckdns.org

mx.kinghost.net

mx.money

mx.kasserver.com

mx.com.ar

mx.sytes.net

mx.center

mx.withyoutube.com

mx.mba

mx.co.uk

mx.s3-website-eu-west-1.amazonaws.com

mx.s3-website-us-east-1.amazonaws.com

mx.design

mx.s3-website-us-west-1.amazonaws.com

mx.msk.ru

mx.scrapping.cc

mx.tv

mx.casino

mx.ma

mx.dyndns.org

mx.sh

mx.ax

mx.lv

mx.or.at

mx.cn

mx.servebbs.org

mx.microsoft

mx.ph

mx.myftp.biz

mx.com.tr

mx.be

mx.guru

mx.selfip.com

Similar names

xm.kiev.ua

xm.js.cn

xm.cc

xm.by

xm.world

xm.lt

xm.com.ua

xm.ru

xm.de

xm.cl

xm.sk

xm.se

xm.hu

xm.com.co

xm.africa

xm.fi

xm.is

xm.am

xm.money

xm.be

xm.cz

xm.hk.cn

xm.fj.cn

xm.pl

xm.vn.ua

xm.house

xm.mk

xm.com

DNS History

2 records (1 active, 1 former)

●A153.122.206.942026-03-01 → 2026-03-26 · 3 obs

○ 2016-12-29 04:29:26
● 2026-03-01 22:10:20
● 2026-03-26 10:53:08

○A211.13.204.142013-06-10 → 2016-12-29 · 4 obs

● 2013-06-10 07:20:14
● 2016-12-29 04:29:26
○ 2026-03-01 22:10:20
○ 2026-03-26 10:53:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
mac21.co.jp	ns2.namedserver.net, ns.namedserver.net	-

✅ Authoritative Response

Server:157.120.114.212

NS records: ns2.namedserver.net, ns.namedserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mac21.co.jp (unsigned zone)

⏱️ Timing

Total: 1353ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.206.94`

Analysis

Mail Server Role

mx.mac21.co.jp serves as the mail server for mac21.co.jp.

IP Addresses

mx.mac21.co.jp points to a single IP: 153.122.206.94.

Other host names, for instance mx.iwakijp.com, mx.nihonbashi-edoya.co.jp, mx.suidobi.co.jp, mx.reonas.com and mx.yasuyoshi.net share IP numbers with mx.mac21.co.jp.

mx.mac21.co.jp - robtex.com

mx.mac21.co.jp

mac21.co.jp