`mail.poly.com.cn`

	DNSSEC	⚠️ Not signed
	A	114.247.170.21^{🇨🇳 CHINA169-BJ114.247.128.0/18 CMI (Customer Route)}

`poly.com.cn`

	DNSSEC	⚠️ Not signed
	NS	`vip3.alidns.com` ⭐
	NS	`vip4.alidns.com`
	MX	`mx-poly-com-cn.icoremail.net` ⭐
	MX	`mail.poly.com.cn`⁽¹⁰⁾
	TXT	`apple-domain-verification=QVxgMQMyyPJmFlWr`
	TXT	`v=spf1 ip4:61.148.50.0/24 include:spf.icoremail.net -all`
	SOA	`vip3.alidns.com`hostmaster@hichina.com 2026-06-11 #11

rank #450250 globally
rank #8450 in the tld

MX for

poly.com.cn

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DNS History

4 records (1 active, 3 former)

●A114.247.170.212026-06-09 → 2026-07-27 · 3 obs

○ 2017-10-23 15:34:04
● 2026-06-09 09:11:14
● 2026-07-27 03:25:42

○A223.5.24.232013-04-15 → 2013-04-15 · 3 obs

● 2013-04-15 09:48:28
○ 2017-10-23 15:34:04
○ 2026-07-27 03:25:42

○A42.156.140.992017-03-09 → 2017-03-09 · 4 obs

○ 2013-04-15 09:48:28
● 2017-03-09 13:03:14
○ 2017-10-23 15:34:04
○ 2026-07-27 03:25:42

○CNAMEmail.mxhichina.com2013-04-15 → 2018-08-20 · 4 obs

● 2013-04-15 09:48:28
● 2018-08-20 07:50:52
○ 2026-06-09 09:11:14
○ 2026-07-27 03:25:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
poly.com.cn	vip3.alidns.com, vip4.alidns.com	-

✅ Authoritative Response

Server:170.33.80.11

NS records: vip3.alidns.com, vip4.alidns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for poly.com.cn (unsigned zone)

⏱️ Timing

Total: 1603ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`114.247.170.21`

Analysis

Mail Server Role

The mail server mail.poly.com.cn processes email for poly.com.cn.

mx-poly-com-cn.icoremail.net routinely functions as a mail server together with mail.poly.com.cn.

IP Addresses

mail.poly.com.cn resolves to just one IP address, 114.247.170.21.

Two other host names, along with cmail.poly.com.cn, mail.poly-pm.com and poly-pm.com, also share IP numbers with mail.poly.com.cn.

mail.poly.com.cn - robtex.com

mail.poly.com.cn

poly.com.cn