mx1.mms4.us - robtex.com
mx1.mms4.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.229.233🇺🇸 THEOPT-HOU216.230.224.0/20 363 N Sam Houston Pkwy E 1100 Houston TX 77060 United States | ||||||
| PTR | cw.attron.com | ||||||
mms4.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.229.237🇺🇸 THEOPT-HOU216.230.224.0/20 363 N Sam Houston Pkwy E 1100 Houston TX 77060 United States | ||||||
| NS | ns1.attron.us ⭐ | ||||||
| NS | ns2.attron.us | ||||||
| NS | ns3.attron.us | ||||||
| NS | ns4.attron.us | ||||||
| MX | mx1.mms4.us ⭐ | ||||||
| TXT | v=spf1 include:_spf.attron.com -all | ||||||
| SOA | ns1.attron.ushostmaster-soa@mms4.us serial=1775137052 | ||||||
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A216.230.229.2332026-04-06 → 2026-04-11 · 2 obs
● 2026-04-06 16:11:58
● 2026-04-11 19:37:40
● 2026-04-11 19:37:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | y.cctld.us, f.cctld.us, m.cctld.us, x.cctld.us... | - |
| mms4.us | ns1.attron.us, ns4.attron.us, ns3.attron.us, ns2.attron.us | 4 records |
✅ Authoritative Response
Server:52.21.34.187
NS records: ns1.attron.us, ns4.attron.us, ns3.attron.us, ns2.attron.us
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mms4.us (unsigned zone)
⏱️ Timing
Total: 227ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 216.230.229.233, 216.230.229.233 |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns4.attron.us, ns3.attron.us, ns2.attron.us...)
Analysis
Mail Server Role
The mail server for mms4.us is mx1.mms4.us.
IP Addresses
mx1.mms4.us points to a single IP number: 216.230.229.233.
Other host names such as smtp-ext01.attron.com and mx01.fcvent.com share IP numbers with mx1.mms4.us.