mx.x19.co - robtex.com
mx.x19.co
x19.co
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.168.172.37🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| A | 103.168.172.52🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| NS | ns1.messagingengine.com ⭐ | ||||||
| NS | ns2.messagingengine.com | ||||||
| MX | us1-smtp.messagingengine.com ⭐ | ||||||
| MX | us2-smtp.messagingengine.com(20) | ||||||
| TXT | v=spf1 include:spf.messagingengine.com ?all | ||||||
| SOA | ns1.messagingengine.compostmaster@messagingengine.com 2026-07-18 #0 | ||||||
Previously MX for
Same first word
Similar names
DNS History
10 records (4 active, 6 former)
○NSns1.undeveloped.com2017-04-21 → 2017-04-21 · 3 obs
○ 2026-06-06 21:56:30
○ 2026-07-25 19:25:44
○NSns2.undeveloped.com2017-04-21 → 2017-04-21 · 3 obs
○ 2026-06-06 21:56:30
○ 2026-07-25 19:25:44
○MXin1-smtp.messagingengine.com2026-06-06 → 2026-06-06 · 3 obs
● 2026-06-06 21:56:30
○ 2026-07-25 19:25:44
○MXin2-smtp.messagingengine.com2026-06-06 → 2026-06-06 · 3 obs
● 2026-06-06 21:56:30
○ 2026-07-25 19:25:44
○MXmx.mx.x19.co2017-04-21 → 2017-04-21 · 3 obs
○ 2026-06-06 21:56:30
○ 2026-07-25 19:25:44
●MXus1-smtp.messagingengine.com2026-07-25 → 2026-07-25 · 2 obs
● 2026-07-25 19:25:44
●MXus2-smtp.messagingengine.com2026-07-25 → 2026-07-25 · 2 obs
● 2026-07-25 19:25:44
●A103.168.172.372026-06-06 → 2026-07-25 · 3 obs
● 2026-06-06 21:56:30
● 2026-07-25 19:25:44
●A103.168.172.522026-06-06 → 2026-07-25 · 3 obs
● 2026-06-06 21:56:30
● 2026-07-25 19:25:44
○A52.58.78.162017-04-21 → 2017-04-21 · 3 obs
○ 2026-06-06 21:56:30
○ 2026-07-25 19:25:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, c.registrydns.co, b.registrydns.co, d.registrydns.co | - |
| x19.co | ns1.messagingengine.com, ns2.messagingengine.com | - |
✅ Authoritative Response
Server:162.159.25.191
NS records: ns1.messagingengine.com, ns2.messagingengine.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for x19.co (unsigned zone)
⏱️ Timing
Total: 823ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 103.168.172.37, 103.168.172.52 |
| MX | 2 | us1-smtp.messagingengine.com (pri: 10), us2-smtp.messagingengine.com (pri: 20) |
Analysis
IP Addresses
mx.x19.co resolves to the IP addresses 103.168.172.37 and 103.168.172.52
nusmart.net, mazzone.info, ns1.robertstocker.com and two other host names share IP numbers with mx.x19.co.
Mail Servers
Mail for mx.x19.co is handled by two mail servers — us1-smtp.messagingengine.com and us2-smtp.messagingengine.com.
mx.x19.co uses an identical mail server configuration to several other domains — among them carahyland.ca, www.poboxlive.com, itconvey.com and two more.
Hostnames that resolve to 8 IP addresses:
us1-smtp.messagingengine.com points to 103.168.172.216, 103.168.172.217, 103.168.172.218 and 5 other IP addresses.
Hosts that point to four IP numbers:
us2-smtp.messagingengine.com maps to the following IP addresses: 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.