`freemails.cn`

DNSSEC	⚠️ Not signed
A	123.57.35.223^{🇨🇳 Alibaba-Cloud123.57.0.0/16 Alibaba (US) Technology Co., Ltd.}
		PTR	`mail.51offer.com`
NS	`f1g1ns1.dnspod.net` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.14.119.35^{🇨🇳 TENCENT-NET-AP1.14.64.0/18}
		A	111.13.13.35^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	125.94.59.235^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	163.177.5.35^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
NS	`f1g1ns2.dnspod.net`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.13.76.35^{🇨🇳 TENCENT-NET-AP1.13.64.0/18}
		A	36.155.149.35^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	101.227.168.35^{🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC}
		A	106.39.207.235^{🇨🇳 CHINA-1106.39.192.0/19 China Telecom Beijing Co. Ltd.}
		A	111.206.98.235^{🇨🇳 CHINA169-BJ111.206.98.0/24}
		A	220.196.136.35^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
MX	`51offer-com.corpsmtp.net` ⭐
		A	23.91.98.8^{🇺🇸 UCLOUD-123.91.98.0/24 ZL-IDC-UCLOUD-HKG}
			PTR	`sal605.corpemail.net`
		A	47.74.183.245^{🇸🇬 Alibaba-Cloud47.74.128.0/18 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US}
			PTR	`sal604.corpemail.net`
		A	47.88.156.124^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal603.corpemail.net`
		A	47.88.170.90^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal601.corpemail.net`
		A	95.85.54.247^{🇳🇱 DIGITALOCEAN95.85.0.0/18 DigitalOcean}
			PTR	`inbound-603.protection.corpemail.net`
		A	159.100.25.64^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-101.corpemail.net`
		A	159.100.25.163^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-401.corpemail.net`
		A	159.100.25.212^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-402.corpemail.net`
		A	188.166.26.239^{🇳🇱 DIGITALOCEAN188.166.0.0/18 DigitalOcean}
			PTR	`inbound-602.protection.corpemail.net`
MX	`51offer-com.corpsmtp.cn`⁽¹⁰⁾
		A	23.91.98.8^{🇺🇸 UCLOUD-123.91.98.0/24 ZL-IDC-UCLOUD-HKG}
			PTR	`sal605.corpemail.net`
		A	47.74.183.245^{🇸🇬 Alibaba-Cloud47.74.128.0/18 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US}
			PTR	`sal604.corpemail.net`
		A	47.88.156.124^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal603.corpemail.net`
		A	47.88.170.90^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal601.corpemail.net`
		A	95.85.54.247^{🇳🇱 DIGITALOCEAN95.85.0.0/18 DigitalOcean}
			PTR	`inbound-603.protection.corpemail.net`
		A	159.100.25.64^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-101.corpemail.net`
		A	159.100.25.163^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-401.corpemail.net`
		A	159.100.25.212^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-402.corpemail.net`
		A	188.166.26.239^{🇳🇱 DIGITALOCEAN188.166.0.0/18 DigitalOcean}
			PTR	`inbound-602.protection.corpemail.net`
MX	`cnc.biz-email.net`⁽¹⁵⁾
		A	210.51.26.140^{🇨🇳 CU-CN-AS210.51.26.0/24}
		A	210.51.26.150^{🇨🇳 CU-CN-AS210.51.26.0/24}
MX	`mail.biz-email.net`⁽²⁰⁾
		A	222.73.234.229^{🇨🇳 SHANGHAITELECOM222.73.234.0/24 SHIDC}
			PTR	`mail.biz-email.net`
		A	222.73.234.234^{🇨🇳 SHANGHAITELECOM222.73.234.0/24 SHIDC}
			PTR	`mail.biz-email.net`
		A	222.73.234.236^{🇨🇳 SHANGHAITELECOM222.73.234.0/24 SHIDC}
			PTR	`mail.biz-email.net`
TXT	`v=spf1 ip4:123.57.35.223 include:_s.corp-email.com -all`
SOA	`f1g1ns1.dnspod.net`freednsadmin@dnspod.com serial=1700719649

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034595653

Same first word

freemails.com

freemails.at

freemails.de

freemails.cn

freemails.us

freemails.eu

freemails.bid

freemails.ch

freemails.net

freemails.pp.ua

freemails.stream

Similar names

DNS History

9 records (7 active, 2 former)

●NSf1g1ns1.dnspod.net2015-09-24 → 2026-03-27 · 2 obs

● 2015-09-24 08:18:04
● 2026-03-27 21:24:22

●NSf1g1ns2.dnspod.net2015-09-24 → 2026-03-27 · 2 obs

● 2015-09-24 08:18:04
● 2026-03-27 21:24:22

●MX51offer-com.corpsmtp.cn2026-03-26 → 2026-03-27 · 3 obs

○ 2017-02-18 08:27:22
● 2026-03-26 04:59:04
● 2026-03-27 21:24:22

●MX51offer-com.corpsmtp.net2026-03-26 → 2026-03-27 · 3 obs

○ 2017-02-18 08:27:22
● 2026-03-26 04:59:04
● 2026-03-27 21:24:22

●MXcnc.biz-email.net2026-03-26 → 2026-03-27 · 3 obs

○ 2017-02-18 08:27:22
● 2026-03-26 04:59:04
● 2026-03-27 21:24:22

●MXmail.biz-email.net2026-03-26 → 2026-03-27 · 3 obs

○ 2017-02-18 08:27:22
● 2026-03-26 04:59:04
● 2026-03-27 21:24:22

○MXwww.freemails.cn2015-09-24 → 2017-02-18 · 4 obs

● 2015-09-24 08:18:04
● 2017-02-18 08:27:22
○ 2026-03-26 04:59:04
○ 2026-03-27 21:24:22

●A123.57.35.2232026-03-26 → 2026-03-27 · 3 obs

○ 2019-12-21 07:34:56
● 2026-03-26 04:59:04
● 2026-03-27 21:24:22

○A182.92.158.852015-09-24 → 2019-12-21 · 4 obs

● 2015-09-24 08:18:04
● 2019-12-21 07:34:56
○ 2026-03-26 04:59:04
○ 2026-03-27 21:24:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn...	-
freemails.cn	f1g1ns1.dnspod.net, f1g1ns2.dnspod.net	-

✅ Authoritative Response

Server:125.94.59.235

NS records: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for freemails.cn (unsigned zone)

⏱️ Timing

Total: 2095ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`123.57.35.223`
NS	2	`f1g1ns1.dnspod.net, f1g1ns2.dnspod.net`
MX	4	`51offer-com.corpsmtp.net (pri: 5), 51offer-com.corpsmtp.cn (pri: 10)...`
TXT	1	`v=spf1 ip4:123.57.35.223 include:_s.corp`
SOA	1	`f1g1ns1.dnspod.net freednsadmin.dnspod.c`

Analysis

IP Addresses

freemails.cn points to a single IP address: 123.57.35.223.

Other host names, for instance mail.haigui.com, vipmailchina.com, mail-abc.com and mail.51offer.com share IP numbers with freemails.cn.

Name Servers

freemails.cn is delegated to two name servers: f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

freemails.cn uses the same name server setup as other domains, including zhoubichang.cn, xiyanghui.com, 91mm.com, linghitai.com and lxxoo.com.

At least part of the name servers for freemails.cn are shared with other domains, for instance bbklanyaerjibaojia.cn, secure-whatsapp.com, archorse.com, chat20en.cfd and maxdepoer.com.

These name servers are often used together with a.dnspod.com, b.dnspod.com and c.dnspod.com.

Host names with eight IP numbers: f1g1ns2.dnspod.net points to 2402:4e00:111:fff::c, 1.12.0.1, 1.13.76.35, 36.155.149.35, 101.227.168.35, 106.39.207.235, 111.206.98.235 and 220.196.136.35. Host names with seven IP numbers: f1g1ns1.dnspod.net points to 2402:4e00:1470:2::e, 1.12.0.4, 1.14.119.35, 111.13.13.35, 117.135.128.235, 125.94.59.235 and 163.177.5.35.

Mail Servers

freemails.cn is handled by four mail servers: 51offer-com.corpsmtp.cn, cnc.biz-email.net, mail.biz-email.net and 51offer-com.corpsmtp.net.

freemails.cn shares at least some mail servers with other domains, for example jsacrel.cn, myipr.com.cn, hscc.com, airtac.com and cncr.com.cn.