`mail.prowintool.com`

DNSSEC	⚠️ Not signed
A	221.224.57.115^{🇨🇳 CHINANET-BACKBONE221.224.0.0/13 ChinaNet Jiangsu Network}
		PTR	`mail.prowintool.com`
MX	`mail.prowintool.com` ⭐
		A	221.224.57.115^{🇨🇳 CHINANET-BACKBONE221.224.0.0/13 ChinaNet Jiangsu Network}
			PTR	`mail.prowintool.com`
MX	`prowintool.com` ⭐
		A	221.224.57.115^{🇨🇳 CHINANET-BACKBONE221.224.0.0/13 ChinaNet Jiangsu Network}
			PTR	`mail.prowintool.com`
TXT	`mail.prowintool.com`
TXT	`v=spf1 include:spf.corp-email.com include:spfb.corp-email.com ~all`

`prowintool.com`

	DNSSEC	⚠️ Not signed
	A	221.224.57.115^{🇨🇳 CHINANET-BACKBONE221.224.0.0/13 ChinaNet Jiangsu Network}
	NS	`dns1.hichina.com` ⭐
	NS	`dns2.hichina.com`
	MX	`cdn.corpemail.net` ⭐
	MX	`cdn.corp-email.cn`⁽²⁾
	MX	`mail.biz-email.net`⁽³⁾
	MX	`cnc.biz-email.net`⁽⁴⁾
	MX	`mail.prowintool.com`⁽¹⁰⁾
	TXT	`v=spf1 include:_s.corp-email.com -all`
	SOA	`dns1.hichina.com`hostmaster@hichina.com 2026-01-12 #9

PTR for

115.57.224.221.in-addr.arpa

MX for

mail.prowintool.com

prowintool.com

Same first word

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DNS History

3 records (3 active, 0 former)

●MXmail.prowintool.com2015-08-28 → 2026-07-27 · 3 obs

○ 2008-03-16 23:09:32
● 2015-08-28 05:42:02
● 2026-07-27 18:47:36

●MXprowintool.com2015-08-28 → 2026-07-27 · 3 obs

○ 2008-03-16 23:09:32
● 2015-08-28 05:42:02
● 2026-07-27 18:47:36

●A221.224.57.1152008-03-16 → 2026-07-27 · 2 obs

● 2008-03-16 23:09:32
● 2026-07-27 18:47:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
prowintool.com	dns2.hichina.com, dns1.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.44

NS records: dns2.hichina.com, dns1.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prowintool.com (unsigned zone)

⏱️ Timing

Total: 481ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`221.224.57.115`
MX	2	`mail.prowintool.com (pri: 1), prowintool.com (pri: 1)`
TXT	2	`v=spf1 include:spf.corp-email.com includ, mail.prowintool.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)

Analysis

Mail Server Role

The mail server mail.prowintool.com is responsible for delivering email for mail.prowintool.com and prowintool.com.

prowintool.com, cdn.corp-email.cn and cnc.biz-email.net are often deployed as mail servers in conjunction with mail.prowintool.com.

IP Addresses

mail.prowintool.com has exactly one IP address — 221.224.57.115.

Other host names, such as prowintool.com, share IP numbers with mail.prowintool.com.

Mail Servers

mail.prowintool.com is handled by two mail servers: mail.prowintool.com and prowintool.com.

mail.prowintool.com overlaps on mail servers with certain other domains, prowintool.com among them.

It is common to find these mail servers used together with the mail servers mail.biz-email.net and cdn.corpemail.net.

prowintool.com and mail.prowintool.com both resolve to the same single IP address: 221.224.57.115.

prowintool.com and mail.prowintool.com are host names that each point to 221.224.57.115 IP addresses.

mail.prowintool.com - robtex.com