umail51.com - robtex.com
umail51.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784685002 | ||||||
Subdomains
Same first word
umail51.com |
DNS History
11 records (11 active, 0 former)
●NSns4-cloud.nic.ru2026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●NSns8-cloud.nic.ru2026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●MXsmtp195.umail51.com2026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●MXsmtp275.umail51.com2026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●MXsmtp577.umail51.com2026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●A217.77.111.282026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●A217.77.111.292026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
●A217.77.111.302026-03-01 → 2026-07-22 · 2 obs
● 2026-07-22 02:06:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| umail51.com | ns8-l2.nic.ru, ns4-l2.nic.ru, ns3-l2.nic.ru, ns8-cloud.nic.ru... | - |
✅ Authoritative Response
Server:91.217.20.20
NS records: ns8-l2.nic.ru, ns4-l2.nic.ru, ns3-l2.nic.ru, ns8-cloud.nic.ru, ns4-cloud.nic.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for umail51.com (unsigned zone)
⏱️ Timing
Total: 1514ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 217.77.111.28, 217.77.111.29... |
| NS | 5 | ns3-l2.nic.ru, ns4-l2.nic.ru... |
| MX | 3 | smtp195.umail51.com (pri: 10), smtp275.umail51.com (pri: 10)... |
| TXT | 3 | mailru-verification: 6104c2011812a01f, v=spf1 include:spf.unisender.com ~all... |
| SOA | 1 | ns3-l2.nic.ru admin.unisender.ru |
Analysis
Hierarchy
smtp274.umail51.com, smtp275.umail51.com, smtp195.umail51.com and smtp577.umail51.com each fall under the parent domain umail51.com.
IP Addresses
The hostname umail51.com resolves to three IP addresses: 217.77.111.28, 217.77.111.29 and 217.77.111.30.
smtp577.umail51.com, smtp274.umail51.com and smtp195.umail51.com are examples of other host names that share IP numbers with umail51.com.
Name Servers
Delegation for umail51.com is to five name servers: ns3-l2.nic.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru and two others.
umail51.com partially shares its NS delegation with several other domains, including nmtport.ru, digitsolution.ru, rascat.ru and two others.
The name servers ns8-l2.nic.ru, ns8-cloud.nic.ru, ns3.nic.ru and ns1.peterhost.ru are often found in use alongside these name servers.
Host names with 6 IP numbers:
ns4-cloud.nic.ru has IP addresses 89.104.93.30, 89.104.93.33 and 89.104.93.34, plus 3 other.
ns8-cloud.nic.ru has IP addresses 89.104.93.31, 89.104.93.35 and 89.104.93.36, plus 3 other.
Host names pointing to a single IP address:
ns3-l2.nic.ru directs to 193.232.146.1.
ns4-l2.nic.ru directs to 91.217.20.20.
ns8-l2.nic.ru directs to 91.217.21.20.
Mail Servers
umail51.com uses three mail servers — smtp195.umail51.com, smtp275.umail51.com and smtp577.umail51.com.
smtp195.umail51.com, smtp275.umail51.com and smtp577.umail51.com all have one IP address each — smtp195.umail51.com directs to 217.77.111.30, smtp275.umail51.com directs to 217.77.111.31 and smtp577.umail51.com directs to 217.77.111.29.