`mx.rex-system.com`

DNSSEC	⚠️ Not signed
A	163.43.91.68^{🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`secure05.willnet.org`

`rex-system.com`

	DNSSEC	⚠️ Not signed
	NS	`01.dnsv.jp` ⭐
	NS	`02.dnsv.jp`
	NS	`03.dnsv.jp`
	NS	`04.dnsv.jp`
	MX	`ms14532409.msv1.invalid.outlook.com` ⭐
	MX	`mx.rex-system.com`⁽¹⁰⁾
	TXT	`v=spf1 a mx include:spf01.willnet.ad.jp ~all`
	SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1682646040

MX for

rex-system.com

Same first word

mx.contact

mx.pe

mx.realm.cz

mx.tn

mx.mk

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.gouv.ci

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.abbott

mx.or.at

mx.cn

mx.servebbs.org

mx.tc

mx.microsoft

mx.solutions

mx.ph

mx.st

mx.com.tr

mx.be

mx.guru

mx.selfip.com

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.ae

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.hn

mx.com.co

mx.nl

mx.com

mx.canva-apps.cn

mx.al

mx

mx.org

mx.net.au

mx.berlin

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.od.ua

mx.su

mx.com.au

mx.123hjemmeside.no

mx.cl

mx.by

mx.tm

mx.main.jp

mx.bplaced.net

mx.uy

mx.dyndns-mail.com

mx.io

mx.co.ke

mx.vg

mx.gp

mx.cloudaccess.net

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

mx.gs

mx.global.prod.fastly.net

mx.email

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.net.tr

mx.network

mx.se.gov.br

mx.gy

Similar names

xm.cn

xm.gov.cn

xm.city

xm.ca

xm.ee

xm.ae

xm.lc

xm.chat

xm.life

xm.net

xm.cm

xm.ke

xm.co

xm.com.cn

xm.co.za

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.hl.cn

xm.africa

xm.fi

xm.is

xm.co.kr

xm.am

xm.money

xm.be

xm.cz

xm.hk.cn

xm.fj.cn

xm.pl

xm.vn.ua

xm.house

xm.mk

xm.la

DNS History

2 records (1 active, 1 former)

○A110.34.58.62015-06-19 → 2016-05-07 · 4 obs

● 2015-06-19 19:22:42
● 2016-05-07 13:55:58
○ 2026-03-07 20:09:56
○ 2026-08-14 07:58:50

●A163.43.91.682026-03-07 → 2026-08-14 · 3 obs

○ 2016-05-07 13:55:58
● 2026-03-07 20:09:56
● 2026-08-14 07:58:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net...	-
rex-system.com	01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp	-

✅ Authoritative Response

Server:157.7.32.53

NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rex-system.com (unsigned zone)

⏱️ Timing

Total: 1196ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`163.43.91.68`

Analysis

Mail Server Role

The mail server mx.rex-system.com processes email for rex-system.com.

As mail servers, ms14532409.msv1.invalid.outlook.com and mx.rex-system.com are regularly found together.

IP Addresses

mx.rex-system.com resolves to just one IP address, 163.43.91.68.

Two other host names, along with mx.marinejet.co.jp, secure05.willnet.org and mx.rex-mail.com, also share IP numbers with mx.rex-system.com.

mx.rex-system.com - dns.ninja

mx.rex-system.com

rex-system.com