`mail.schoolall.com`

CNAME	`mailapp.hiworks.co.kr`
DNSSEC	⚠️ Not signed
A	45.120.71.59^{🇰🇷 DACOM-NET45.120.71.0/24}
		PTR	`mailapp.hiworks.co.kr`
A	121.254.168.55^{🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary}
A	211.47.76.59^{🇰🇷 DACOM-NET211.47.76.0/24 proxy for HANARO TELECOM route}

`schoolall.com`

	DNSSEC	⚠️ Not signed
	A	1.224.163.49^{🇰🇷 SKB-NET1.224.0.0/13 auto-generated route object for 1.224.0.0/13}
	NS	`ns1.kshosting.co.kr` ⭐
	NS	`ns2.kshosting.co.kr`
	MX	`mail.schoolall.com` ⭐
	TXT	`turingsign=AE03E345-232A-7FC0-1D0C-0FCE5CFF975C`
	TXT	`v=spf1 include:_spf.hiworks.co.kr ip4:1.224.163.49 ~all`
	SOA	`ns1.kshosting.co.kr`root@kshosting.co.kr 2022-05-23 #2

MX for

schoolall.com

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DNS History

2 records (1 active, 1 former)

○A121.254.168.552015-06-10 → 2016-04-29 · 4 obs

● 2015-06-10 09:58:40
● 2016-04-29 05:25:52
○ 2026-03-26 06:16:04
○ 2026-04-14 19:12:16

●CNAMEmailapp.hiworks.co.kr2015-06-10 → 2026-04-14 · 2 obs

● 2015-06-10 09:58:40
● 2026-04-14 19:12:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...	-
schoolall.com	ns1.kshosting.co.kr, ns2.kshosting.co.kr	-

✅ Authoritative Response

Server:219.251.156.130

NS records: ns1.kshosting.co.kr, ns2.kshosting.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schoolall.com (unsigned zone)

⏱️ Timing

Total: 1273ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mailapp.hiworks.co.kr`

Analysis

Mail Server Role

The mail server for schoolall.com is mail.schoolall.com.

IP Addresses

Three IP numbers are pointed to by mail.schoolall.com: 45.120.71.59, 121.254.168.55 and 211.47.76.59.

Other host names, for instance mailapp.hiworks.com, mx.isskor.com, mail1.ubicod.com, mail.skoolooks.com and mail.banax.co.kr share IP numbers with mail.schoolall.com.

mail.schoolall.com - robtex.com