`mail.constructionbook.com`

	CNAME	`mail.office365.com`
	CNAME	`outlook.office365.com`
	CNAME	`outlook.cloud.microsoft`
	DNSSEC	⚠️ Not signed

`constructionbook.com`

	DNSSEC	⚠️ Not signed
	A	40.83.211.232^{🇺🇸 Microsoft40.80.0.0/12}
	NS	`ns09.domaincontrol.com` ⭐
	NS	`ns10.domaincontrol.com`
	MX	`constructionbook-com.mail.protection.outlook.com` ⭐
	TXT	`v=spf1 include:spf.protection.outlook.com -all`
	SOA	`ns09.domaincontrol.com`dns@jomax.net 2026-04-20 #1

WOT: SAFE (69/100)
WOT: SAFE (88/100)

Previously MX for

constructionbook.com

Same first word

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mail.bielsko.pl

mail.com.sg

mail.kikirara.jp

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mail.hr

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mail.(0x7075737379)cat.jp

mail.tm

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mail.chat

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mail.serveftp.com

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mail.peewee.jp

mail.virtualuser.de

mail.charity

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mail.dp.ua

mail.myjino.ru

mail.space

mail.net.ph

mail.rr.gov.br

mail.read-books.org

mail.ilovecollege.info

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mail.holiday

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mail.ma

mail.mr

mail.hashbang.sh

mail.mil.ru

mail.schwarz

mail.co.uk

mail.net.mk

mail.rj.gov.br

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mail.direct

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mail.vacations

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mail.gov.kg

mail.ag

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ilam.ph

amli.fi

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mali.com

DNS History

2 records (1 active, 1 former)

○A216.74.55.352015-08-22 → 2016-07-25 · 4 obs

● 2015-08-22 00:55:12
● 2016-07-25 21:22:44
○ 2026-03-12 10:27:12
○ 2026-04-24 18:46:18

●CNAMEmail.office365.com2026-03-12 → 2026-04-24 · 2 obs

● 2026-03-12 10:27:12
● 2026-04-24 18:46:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
constructionbook.com	ns09.domaincontrol.com, ns10.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.104.5

NS records: ns09.domaincontrol.com, ns10.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for constructionbook.com (unsigned zone)

⏱️ Timing

Total: 88ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mail.office365.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns09.domaincontrol.com, ns09.domaincontrol.com, ns10.domaincontrol.com...)

mail.constructionbook.com - robtex.com