`mail.serv-u.cn`

DNSSEC	⚠️ Not signed
A	61.151.249.252^{🇨🇳 SHANGHAITELECOM61.151.249.0/24 SHIDC}
		PTR	`mail.qast.com`

`serv-u.cn`

	DNSSEC	⚠️ Not signed
	NS	`ns19.xincache.com` ⭐
	NS	`ns20.xincache.com`
	MX	`mail.serv-u.cn` ⭐
	SOA	`ns19.xincache.com`enterprise1dnsadmin@dnspod.com serial=1577154301

MX for

serv-u.cn

Same first word

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DNS History

1 record (1 active, 0 former)

●A61.151.249.2522026-04-28 → 2026-04-29 · 2 obs

● 2026-04-28 04:22:08
● 2026-04-29 04:21:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	d.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...	-
serv-u.cn	ns19.xincache.com, ns20.xincache.com	-

✅ Authoritative Response

Server:2402:4e00:111:fff::c

NS records: ns19.xincache.com, ns20.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for serv-u.cn (unsigned zone)

⏱️ Timing

Total: 3324ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`61.151.249.252`

Analysis

Mail Server Role

mail.serv-u.cn is the mail server for serv-u.cn.

IP Addresses

mail.serv-u.cn points to a single IP number: 61.151.249.252.

other host names for instance mail.sourceinsight.com.cn, mail.xiniu.com.cn, mail.usseprint.com, mail.winrar.com.cn and mail.workshare.co share IP numbers with mail.serv-u.cn.

mail.serv-u.cn - robtex.com

mail.serv-u.cn

serv-u.cn