`mx.g21telecom.com.br`

DNSSEC	⚠️ Not signed
A	45.224.128.240^{🇧🇷 FERENZ45.224.128.0/24 Ferenz Networks - DC}
		PTR	`servidor.g21host.com.br`

`g21telecom.com.br`

	DNSSEC	🔒 Signed (DS record present)
	A	138.185.72.21^{🇧🇷 EMPASOFT138.185.72.0/22 ITX-REDEUNIFIQUE}
	NS	`a.sec.dns.br` ⭐
	NS	`c.sec.dns.br`
	MX	`mx.g21telecom.com.br` ⭐
	TXT	`g21telecom.com.br.`
	TXT	`v=spf1 +mx +a +include:spf.servidor.g21host.com.br +ip4:45.224.128.241 ~all`
	SOA	`a.sec.dns.br`hostmaster@registro.br serial=2026196000

MX for

g21telecom.com.br

Same first word

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mx.email

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mx.ru

mx.services

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mx.design

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mx.msk.ru

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mx.tv

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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

Similar names

xm.mk

xm.la

xm.com

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xm.media

xm.fyi

xm.pe

xm.wtf

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mx.canva-apps.cn

xm.ke

mx.al

mx

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mx.berlin

mx.sb

mx.sub.jp

mx.nf

mx.kg

xm.co

xm.com.cn

mx.fm

mx.dk

mx.mil.lv

xm.co.za

mx.is

DNS History

1 record (1 active, 0 former)

●A45.224.128.2402026-04-05 → 2026-08-09 · 2 obs

● 2026-04-05 17:04:12
● 2026-08-09 08:14:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
g21telecom.com.br	a.sec.dns.br, c.sec.dns.br	-

✅ Authoritative Response

Server:200.189.40.11

NS records: a.sec.dns.br, c.sec.dns.br

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 935ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.224.128.240`

Analysis

Mail Server Role

g21telecom.com.br uses mx.g21telecom.com.br as a mail server.

IP Addresses

mx.g21telecom.com.br resolves to one IP address: 45.224.128.240.

bluebull.com.br, servidor.g21host.com.br, ns1.g21host.com.br and g21host.com.br are examples of host names that share IP numbers with mx.g21telecom.com.br.

mx.g21telecom.com.br - robtex.com