smtp.mcunc.cn - robtex.com
smtp.mcunc.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.109.23.64🇨🇳 CHINANET-Guangdong-ShenZhen-IDC103.109.20.0/22 Shenzhen Yunshangwuyou Communication Network Co., Ltd.-SZ IDC-Static multicast | ||||||
mcunc.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.109.23.64🇨🇳 CHINANET-Guangdong-ShenZhen-IDC103.109.20.0/22 Shenzhen Yunshangwuyou Communication Network Co., Ltd.-SZ IDC-Static multicast | ||||||
| NS | ns1.alidns.com ⭐ | ||||||
| NS | ns2.alidns.com | ||||||
| MX | mx1.feishu.cn ⭐ | ||||||
| MX | mx2.feishu.cn ⭐ | ||||||
| MX | mx3.feishu.cn ⭐ | ||||||
| MX | smtp.mcunc.cn(15) | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| TXT | v=spf1 +include:_netblocks.m.feishu.cn -all | ||||||
| TXT | verification-code-site-App_feishu=EmTx0voUAvsxNZ46npnJ | ||||||
| SOA | ns1.alidns.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A103.109.23.642026-03-28 → 2026-05-11 · 2 obs
● 2026-03-28 13:40:00
● 2026-05-11 00:08:32
● 2026-05-11 00:08:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| mcunc.cn | ns1.alidns.com, ns2.alidns.com | - |
✅ Authoritative Response
Server:139.224.142.116
NS records: ns1.alidns.com, ns2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mcunc.cn (unsigned zone)
⏱️ Timing
Total: 3314ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.109.23.64 |
Analysis
Mail Server Role
smtp.mcunc.cn serves as the mail server for mcunc.cn.
mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn are commonly used as mail servers together with smtp.mcunc.cn.
IP Addresses
smtp.mcunc.cn resolves to a single IP address: 103.109.23.64.
Other host names, for instance mcunc.cn, share IP numbers with smtp.mcunc.cn.