mail.dalian-it.com - robtex.com

mail.dalian-it.com

DNSSEC⚠️ Not signed
A123.177.21.153🇨🇳 CHINANET-LIAONING-DALIAN-MAN123.177.20.0/22 chinatelecom liaoning network
PTRmail.dalian-it.com

dalian-it.com

DNSSEC⚠️ Not signed
NSns11.xincache.com ⭐
NSns17.xincache.com
NSns18.xincache.com
MXmail2.dalian-it.com ⭐
MXbak.dalian-it.com(15)
MXmail3.dalian-it.com(20)
MXmail.dalian-it.com(25)
TXTv=spf1 ip4:123.177.21.153 ip4:59.108.59.24 ip4:49.5.7.139 mx ~all
SOAns11.xincache.comns12@xincache.com serial=1743124728

PTR for

153.21.177.123.in-addr.arpa

MX for

dalian-it.com

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A123.177.21.153210.76.163.19
●A123.177.21.1532026-02-25 → 2026-04-11 · 3 obs
○ 2016-03-15 13:47:54
● 2026-02-25 21:23:24
● 2026-04-11 20:58:46
○A210.76.163.192015-06-01 → 2016-03-15 · 4 obs
● 2015-06-01 07:30:52
● 2016-03-15 13:47:54
○ 2026-02-25 21:23:24
○ 2026-04-11 20:58:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...-
dalian-it.comns17.xincache.com, ns18.xincache.com12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns17.xincache.com, ns18.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dalian-it.com (unsigned zone)

⏱️ Timing

Total: 138ms | Queries: -

📄 Records

TypeCountSample Data
A1123.177.21.153

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns17.xincache.com, ns17.xincache.com, ns17.xincache.com...)

Analysis

Mail Server Role

mail.dalian-it.com is the mail server for dalian-it.com.

bak.dalian-it.com, mail2.dalian-it.com and mail3.dalian-it.com are commonly used as mail servers in conjunction with mail.dalian-it.com.

IP Addresses

mail.dalian-it.com maps to IP address 123.177.21.153.