`mail.sysleader.com`

CNAME	`ym.163.com`
DNSSEC	⚠️ Not signed
A	111.124.200.33^{🇨🇳 CHINANET-Guizhou-Guian-IDC111.124.192.0/19}
MX	`mx.ym.163.com` ⭐
		A	111.124.200.35^{🇨🇳 CHINANET-Guizhou-Guian-IDC111.124.192.0/19}
TXT	`qqmail-site-verification=7257b73e190ad942c0f4062f33fe2cbd8e932e6798f`
TXT	`v=spf1 include:spf.163.com -all`

`sysleader.com`

	DNSSEC	⚠️ Not signed
	A	59.110.30.156^{🇨🇳 Alibaba-Cloud59.110.0.0/17 CT BeiJing IDC}
	NS	`ns1.alidns.com` ⭐
	NS	`ns2.alidns.com`
	MX	`mx.ym.163.com` ⭐
	TXT	`v=spf1 include:spf.163.com ~all`
	SOA	`ns1.alidns.com`hostmaster@hichina.com 2026-01-09 #13

Same first word

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mail.awsapps.com

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mail.gov.lv

mail.jetzt

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mail.myshopify.com

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mail.site

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mail.dating

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DNS History

4 records (1 active, 3 former)

○A123.58.177.512015-06-11 → 2016-04-08 · 5 obs

○ 2008-03-17 14:33:42
● 2015-06-11 06:17:44
● 2016-04-08 03:42:48
○ 2026-04-16 14:19:38
○ 2026-04-16 14:19:40

○A218.5.72.422008-03-17 → 2008-03-17 · 3 obs

● 2008-03-17 14:33:42
○ 2015-06-11 06:17:44
○ 2026-04-16 14:19:40

○CNAMEmail.ym.163.com2015-06-11 → 2016-04-08 · 5 obs

○ 2008-03-17 14:33:42
● 2015-06-11 06:17:44
● 2016-04-08 03:42:48
○ 2026-04-16 14:19:38
○ 2026-04-16 14:19:40

●CNAMEym.163.com2026-04-16 → 2026-04-16 · 3 obs

○ 2016-04-08 03:42:48
● 2026-04-16 14:19:38
● 2026-04-16 14:19:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sysleader.com	ns1.alidns.com, ns2.alidns.com	18 records

✅ Authoritative Response

Server:120.76.107.45

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysleader.com (unsigned zone)

⏱️ Timing

Total: 3523ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ym.163.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (ns1.alidns.com, ns1.alidns.com, ns1.alidns.com...)

Analysis

IP Addresses

mail.sysleader.com points to a single IP: 111.124.200.33.

Other host names such as ym.163.com and mail.ym.ntes53.netease.com share IP numbers with mail.sysleader.com.

Mail Servers

mail.sysleader.com is handled by a single mail server, mx.ym.163.com.

mail.sysleader.com has the same mail server setup as other domains, including texprestige.com, quanguojuan.com, zbeiun.com, shgxpc.com and jiangtour.com.

mail.sysleader.com shares some mail servers with other domains, at least partially, such as d1.com.cn, kdf55.com, jzshouban.com, elcon.com.tw and mail.joinluck.com.

mx.ym.163.com points to a single IP: 111.124.200.35.

mail.sysleader.com - robtex.com