flexsmtp.com - robtex.com
flexsmtp.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=1774365702 | ||||||
Subdomains
Same first word
flexsmtp.com |
DNS History
9 records (8 active, 1 former)
●NSns1.dnsonweb.eu2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
●NSns2.dnsonweb.co.uk2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
●NSns3.dnsonweb.nl2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
●NSns4.dnsonweb.com2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
●NSns5.dnsonweb.asia2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
●MXmail.flexsmtp.com2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
●MXmx2.flexsmtp.com2015-08-07 → 2026-03-24 · 2 obs
● 2026-03-24 15:41:50
○A178.21.118.1002015-08-07 → 2020-01-30 · 4 obs
● 2020-01-30 12:08:14
○ 2026-02-26 21:56:02
○ 2026-03-24 15:41:50
●A95.111.240.722026-02-26 → 2026-03-24 · 3 obs
● 2026-02-26 21:56:02
● 2026-03-24 15:41:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| flexsmtp.com | ns1.dnsonweb.eu, ns3.dnsonweb.nl, ns4.dnsonweb.com, ns2.dnsonweb.co.uk... | 2 records |
✅ Authoritative Response
Server:173.214.173.200
NS records: ns1.dnsonweb.eu, ns3.dnsonweb.nl, ns4.dnsonweb.com, ns2.dnsonweb.co.uk, ns5.dnsonweb.asia
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for flexsmtp.com (unsigned zone)
⏱️ Timing
Total: 754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.111.240.72 |
| NS | 5 | ns2.dnsonweb.co.uk, ns5.dnsonweb.asia... |
| MX | 2 | mx2.flexsmtp.com (pri: 50), mail.flexsmtp.com (pri: 10) |
| TXT | 3 | 0dad15ca47db941588b9466b7a3e5a499d0c1ed6, dan-ownership-verification=g33yxlux... |
| SOA | 1 | ns1.dnsonweb.eu postmaster.dnsonweb.eu |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns4.dnsonweb.com, ns4.dnsonweb.com)
Analysis
Hierarchy
flexsmtp.com is a parent of mx2.flexsmtp.com and mail.flexsmtp.com.
IP Addresses
flexsmtp.com points to IP number: 95.111.240.72.
Other host names such as mail.voippbx.systems, mail.billingdomain.com, mail.protect-it.nl, mail.heinkuenen.com and billingdomain.eu share IPs with flexsmtp.com.
Name Servers
flexsmtp.com is delegated to five name servers: ns5.dnsonweb.asia, ns4.dnsonweb.com, ns1.dnsonweb.eu, ns3.dnsonweb.nl and ns2.dnsonweb.co.uk.
flexsmtp.com at least partially shares name servers with other domains, for instance ordervoip.com, danceschoolinhampstead.com, prmail.eu, voyced.eu and dnsonweb.asia.
these name servers are commonly used with ns2.dnsonweb.eu, ns3.dnsonweb.eu, ns4.dnsonweb.eu and ns5.dnsonweb.eu.
Host names with two IP numbers:
Hostname ns5.dnsonweb.asia points to 2001:19f0:7001:d0a:5400:ff:fe3e:ff1e and 45.76.196.122.
Hostname ns4.dnsonweb.com points to 2604:a00:12:3358::200 and 173.214.173.200.
Hostname ns1.dnsonweb.eu points to 2a02:c207:2031:3720::69 and 144.91.95.69.
Hostname ns3.dnsonweb.nl points to 2001:1af8:2100:b070:6:0:176e:57ac and 193.43.92.206.
Hostname ns2.dnsonweb.co.uk points to 2001:19f0:6c01:44f:5400:ff:fe64:4bd4 and 45.32.152.202.
Mail Servers
flexsmtp.com is handled by two mail servers: mail.flexsmtp.com and mx2.flexsmtp.com.
Host names with a single IP:
mail.flexsmtp.com points to 95.111.240.72.
mx2.flexsmtp.com points to 193.43.92.206.