`mail.oshainstructor.com`

DNSSEC	⚠️ Not signed
A	75.98.175.70^{🇺🇸 A2HOSTING75.98.160.0/20 A2 Hosting, Inc.}
		PTR	`mi3-cl9-its5.a2hosting.com`

`oshainstructor.com`

	DNSSEC	⚠️ Not signed
	A	75.98.175.70^{🇺🇸 A2HOSTING75.98.160.0/20 A2 Hosting, Inc.}
	NS	`ns1.a2hosting.com` ⭐
	NS	`ns2.a2hosting.com`
	NS	`ns3.a2hosting.com` ⚠️ Not in parent delegation
	NS	`ns4.a2hosting.com` ⚠️ Not in parent delegation
	MX	`mail.oshainstructor.com` ⭐
	TXT	`v=spf1 +a +mx +ip4:75.98.175.70 include:spf.a2hosting.com ~all`
	SOA	`ns1.a2hosting.com`root@mi3-cl9-its5.a2hosting.com 2026-03-08 #1

MX for

oshainstructor.com

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DNS History

1 record (1 active, 0 former)

●A75.98.175.702026-02-19 → 2026-03-27 · 2 obs

● 2026-02-19 13:17:38
● 2026-03-27 21:10:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
oshainstructor.com	ns1.a2hosting.com, ns2.a2hosting.com	2 records

✅ Authoritative Response

Server:13.248.158.180

NS records: ns1.a2hosting.com, ns2.a2hosting.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oshainstructor.com (unsigned zone)

⏱️ Timing

Total: 112ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`75.98.175.70`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.a2hosting.com, ns2.a2hosting.com)

Analysis

Mail Server Role

mail.oshainstructor.com serves as the mail server for oshainstructor.com.

IP Addresses

mail.oshainstructor.com resolves to a single IP: 75.98.175.70.

Other host names, for instance toptravelvoyages.com, mail.savantic.com, mail.esbs.info, mail.as-fi.com and tomcatonline.com share IP numbers with mail.oshainstructor.com.

mail.oshainstructor.com - robtex.com