sentmail.systems - robtex.com
sentmail.systems
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:d07d🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::6815:5d5c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.93.92Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.208.125🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | mona.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3ace🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mona.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0ce🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | mona.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20ce🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | mona.ns.cloudflare.com | ||||||
| A | 108.162.192.206🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mona.ns.cloudflare.com | ||||||
| A | 172.64.32.206🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mona.ns.cloudflare.com | ||||||
| A | 173.245.58.206🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mona.ns.cloudflare.com | ||||||
| NS | sean.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3be7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sean.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1e7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sean.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21e7🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sean.ns.cloudflare.com | ||||||
| A | 108.162.193.231🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sean.ns.cloudflare.com | ||||||
| A | 172.64.33.231🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sean.ns.cloudflare.com | ||||||
| A | 173.245.59.231🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sean.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.93.92, 172.67.208.125 | ||||||
| IPv6 | 2606:4700:3031::ac43:d07d, 2606:4700:3034::6815:5d5c | ||||||
| SOA | mona.ns.cloudflare.comdns@cloudflare.com serial=2399812231 | ||||||
systems
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.systems ⭐ | ||||||
| NS | v0n1.nic.systems | ||||||
| NS | v0n2.nic.systems | ||||||
| NS | v0n3.nic.systems | ||||||
| NS | v2n0.nic.systems | ||||||
| NS | v2n1.nic.systems | ||||||
| SOA | v0n0.nic.systemshostmaster@donuts.email serial=1774442737 | ||||||
Same first word
sentmail.nl |
sentmail.org |
sentmail.eu |
sentmail.in.th |
sentmail.net |
sentmail.systems |
sentmail.co.uk |
sentmail.de |
sentmail.com |
Similar names
DNS History
6 records (6 active, 0 former)
●NSmona.ns.cloudflare.com2026-03-22 → 2026-03-25 · 2 obs
● 2026-03-25 12:55:46
●NSsean.ns.cloudflare.com2026-03-22 → 2026-03-25 · 2 obs
● 2026-03-25 12:55:46
●A104.21.93.922026-03-22 → 2026-03-25 · 2 obs
● 2026-03-25 12:55:46
●A172.67.208.1252026-03-22 → 2026-03-25 · 2 obs
● 2026-03-25 12:55:46
●A2606:4700:3031::ac43:d07d2026-03-22 → 2026-03-25 · 2 obs
● 2026-03-25 12:55:46
●A2606:4700:3034::6815:5d5c2026-03-22 → 2026-03-25 · 2 obs
● 2026-03-25 12:55:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| systems | v0n0.nic.systems, v0n1.nic.systems, v0n2.nic.systems, v0n3.nic.systems... | 12 records |
| sentmail.systems | sean.ns.cloudflare.com, mona.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.231
NS records: sean.ns.cloudflare.com, mona.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sentmail.systems (unsigned zone)
⏱️ Timing
Total: 560ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.93.92, 172.67.208.125 |
| AAAA | 2 | 2606:4700:3034::6815:5d5c, 2606:4700:3031::ac43:d07d |
| NS | 2 | mona.ns.cloudflare.com, sean.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | mona.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.systems, v0n0.nic.systems, v0n1.nic.systems...)
Analysis
IP Addresses
sentmail.systems maps to four IP numbers: 2606:4700:3031::ac43:d07d, 2606:4700:3034::6815:5d5c, 104.21.93.92 and 172.67.208.125.
Other host names, for instance cz15.cn, petru.cc, deerjn.com, totalcarguide.com and www.denisbernard.com share IP numbers with sentmail.systems.
Name Servers
Two name servers mona.ns.cloudflare.com and sean.ns.cloudflare.com handle delegation for sentmail.systems.
sentmail.systems uses the same name server setup as other domains, for example hot-deal.page, mailinc.info, interserv.co, transfervans.co.nz and parlamenti.ge.
sentmail.systems partially shares name servers with other domains; examples include hnyzgc.com, lefam.com.ar, dosug-rostov.ru, myimgmoments.com and urbandomainnames.com.
These name servers are often used with the name servers luciana.ns.cloudflare.com and ken.ns.cloudflare.com.
Host names with six IP numbers: mona.ns.cloudflare.com points to: 2606:4700:50::adf5:3ace, 2803:f800:50::6ca2:c0ce, 2a06:98c1:50::ac40:20ce, 108.162.192.206, 172.64.32.206 and 173.245.58.206; sean.ns.cloudflare.com points to: 2606:4700:58::adf5:3be7, 2803:f800:50::6ca2:c1e7, 2a06:98c1:50::ac40:21e7, 108.162.193.231, 172.64.33.231 and 173.245.59.231.