`mail.mcgraw-hillengineeringcs.com`

DNSSEC

⚠️ Not signed

`mcgraw-hillengineeringcs.com`

	DNSSEC	⚠️ Not signed
	NS	`pdns85.ultradns.com` ⭐
	NS	`pdns85.ultradns.biz`
	NS	`pdns85.ultradns.net`
	NS	`pdns85.ultradns.org`
	TXT	`v=spf1 mx -all`
	SOA	`pdns85.ultradns.com`hostmaster@mheducation.com 2005-10-02 #24

Previously MX for

mcgraw-hillengineeringcs.com

Same first word

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DNS History

1 record (0 active, 1 former)

○A206.168.222.1622015-06-26 → 2016-04-26 · 3 obs

● 2015-06-26 14:17:32
● 2016-04-26 07:31:04
○ 2026-04-26 18:27:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, b.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net...	-
mcgraw-hillengineeringcs.com	pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.64.85

NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mcgraw-hillengineeringcs.com (unsigned zone)

⏱️ Timing

Total: 716ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns85.ultradns.com, pdns85.ultradns.com)

mail.mcgraw-hillengineeringcs.com - robtex.com