smtp.mail.cx - robtex.com
smtp.mail.cx
| DNSSEC | ⚠️ Not signed | ||||||
| A | 135.181.195.96🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC | ||||||
| PTR | smtp.mail.td | ||||||
mail.cx
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3033::ac43:9e18🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:e39🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.14.57Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.158.24🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | syeef.ns.cloudflare.com ⭐ | ||||||
| NS | zainab.ns.cloudflare.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| MX | alt3.aspmx.l.google.com(10) | ||||||
| MX | alt4.aspmx.l.google.com(10) | ||||||
| TXT | fdd737edf58913e637c70b4ab8c5a272818f1ed6 | ||||||
| TXT | google-site-verification=DS0E_ZTG6YuCrshXFw9k55iE4KN4Y4atKuFhizT9syY | ||||||
| TXT | v=spf1 include:_spf.google.com -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.14.57, 172.67.158.24 | ||||||
| IPv6 hints | 2606:4700:3033::ac43:9e18, 2606:4700:3035::6815:e39 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=227, name=cloudflare-ech.com | ||||||
| SOA | syeef.ns.cloudflare.comdns@cloudflare.com serial=2402517701 | ||||||
MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●A135.181.195.962026-04-11 → 2026-05-13 · 9 obs
○ 2026-04-06 16:09:44
● 2026-04-11 22:02:22
● 2026-04-12 00:39:46
○ 2026-04-16 13:39:12
● 2026-04-17 02:22:06
● 2026-05-07 04:31:12
○ 2026-05-11 21:21:36
● 2026-05-12 19:49:46
● 2026-05-13 14:05:06
● 2026-04-11 22:02:22
● 2026-04-12 00:39:46
○ 2026-04-16 13:39:12
● 2026-04-17 02:22:06
● 2026-05-07 04:31:12
○ 2026-05-11 21:21:36
● 2026-05-12 19:49:46
● 2026-05-13 14:05:06
○A89.167.104.272026-04-06 → 2026-04-06 · 3 obs
● 2026-04-06 16:09:44
○ 2026-04-11 22:02:22
○ 2026-05-13 14:05:06
○ 2026-04-11 22:02:22
○ 2026-05-13 14:05:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cx | ns2.anycastdns.cz, ns.anycast.nic.cx, ns1.anycastdns.cz | 5 records |
| mail.cx | syeef.ns.cloudflare.com, zainab.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.238
NS records: syeef.ns.cloudflare.com, zainab.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 535ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 135.181.195.96 |
📌 Glue Records Collected
Total: 5
In-bailiwick: 2 (ns.anycast.nic.cx, ns.anycast.nic.cx)
Out-of-bailiwick: 3 (ns2.anycastdns.cz, ns1.anycastdns.cz, ns1.anycastdns.cz)
Analysis
Mail Server Role
smtp.mail.cx serves as a mail server for end.tw, sssssssss.com, qabq.com, nqmo.com, 6n9.net and a few other domains.
For mail handling, mx.qabq.com serves as a mail server together with smtp.mail.cx.
IP Addresses
smtp.mail.cx points to a single IP number: 135.181.195.96.
Other host names such as smtp.mail.td and mx.qabq.com share IP numbers with smtp.mail.cx.