postmail.su - robtex.com
postmail.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 88.84.221.88🇷🇺 FLEX-AS88.84.192.0/19 Flex ISP | ||||||
| PTR | host4.symbios.ru | ||||||
| NS | host4.symbios ⭐ | ||||||
| NS | host4.symbios.ru | ||||||
| A | 88.84.221.88🇷🇺 FLEX-AS88.84.192.0/19 Flex ISP | ||||||
| PTR | host4.symbios.ru | ||||||
| NS | ns.symbios.ru | ||||||
| A | 88.84.221.88🇷🇺 FLEX-AS88.84.192.0/19 Flex ISP | ||||||
| PTR | host4.symbios.ru | ||||||
| NS | ns2.symbios.ru | ||||||
| MX | mail.postmail.su(20) | ||||||
| A | 88.84.221.88🇷🇺 FLEX-AS88.84.192.0/19 Flex ISP | ||||||
| PTR | host4.symbios.ru | ||||||
| TXT | v=spf1 ip4:192.168.18.185 ip4:88.84.221.88 a mx ~all | ||||||
| SOA | host4.symbiosroot@example.com 2025-05-09 #31 | ||||||
su
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=650208902 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NShost4.symbios.ru2026-04-27 → 2026-04-28 · 2 obs
● 2026-04-28 08:40:40
●NSns.symbios.ru2026-04-27 → 2026-04-28 · 2 obs
● 2026-04-28 08:40:40
●NSns2.symbios.ru2026-04-27 → 2026-04-28 · 2 obs
● 2026-04-28 08:40:40
●MXmail.postmail.su2026-04-27 → 2026-04-28 · 2 obs
● 2026-04-28 08:40:40
●A88.84.221.882026-04-27 → 2026-04-28 · 2 obs
● 2026-04-28 08:40:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | 10 records |
| postmail.su | ns2.symbios.ru, ns.symbios.ru, host4.symbios.ru | - |
✅ Authoritative Response
Server:88.84.221.88
NS records: ns2.symbios.ru, ns.symbios.ru, host4.symbios.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for postmail.su (unsigned zone)
⏱️ Timing
Total: 1312ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.84.221.88 |
| NS | 3 | ns.symbios.ru, ns2.symbios.ru... |
| MX | 2 | mail.postmail.su (pri: 10), mail.postmail.su (pri: 20) |
| TXT | 1 | v=spf1 ip4:192.168.18.185 ip4:88.84.221. |
| SOA | 1 | host4.symbios root.example.com |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (a.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net...)
Analysis
IP Addresses
postmail.su points to a single IP number: 88.84.221.88.
Other host names, for instance mail.sparktell.net, symbios.ru, dts.su, ns.symbios.ru and mail.dts.su share IP numbers with postmail.su.
Name Servers
postmail.su is delegated to four name servers: host4.symbios, host4.symbios.ru, ns2.symbios.ru and ns.symbios.ru.
postmail.su at least partially shares name servers with other domains, for instance loasu.com, videonline.ru, dts.ru, symbios.ru and dts.su.
these name servers are commonly used with ns2.example.com, ns1.example.com and ns1.loa.su.
Host names sharing a single IP:
host4.symbios.ru points to 88.84.221.88
ns.symbios.ru points to 88.84.221.88
Host names that point to 88.84.221.88: host4.symbios.ru and ns.symbios.ru
Mail Servers
postmail.su is handled by a single mail server, mail.postmail.su.
mail.postmail.su points to a single IP: 88.84.221.88.