cbl.cb.att.com - robtex.com
cbl.cb.att.com
| DNSSEC | ⚠️ Not signed | ||||||
| MX | mx0a-00191d01.pphosted.com ⭐ | ||||||
| A | 67.231.149.140🇺🇸 Proofpoint67.231.149.0/24 Inc. | ||||||
| PTR | mx0a-00191d01.pphosted.com | ||||||
| MX | mx0b-00191d01.pphosted.com ⭐ | ||||||
| A | 67.231.157.136🇺🇸 Proofpoint67.231.157.0/24 Inc. | ||||||
| PTR | mx0b-00191d01.pphosted.com | ||||||
cb.att.com
| DNSSEC | ⚠️ Not signed | ||||||
| MX | mx0a-00191d01.pphosted.com ⭐ | ||||||
| MX | mx0b-00191d01.pphosted.com ⭐ | ||||||
WOT: SAFE (92/100)
Same first word
Similar names
DNS History
2 records (2 active, 0 former)
●MXmx0a-00191d01.pphosted.com2017-06-02 → 2026-05-11 · 2 obs
● 2026-05-11 06:29:22
●MXmx0b-00191d01.pphosted.com2017-06-02 → 2026-05-11 · 2 obs
● 2026-05-11 06:29:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net... | - |
| att.com | a5-66.akam.net, a22-67.akam.net, a11-65.akam.net, a2-64.akam.net... | - |
✅ Authoritative Response
Server:95.100.174.64
NS records: a5-66.akam.net, a22-67.akam.net, a11-65.akam.net, a2-64.akam.net, a1-187.akam.net, a4-64.akam.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for att.com (unsigned zone)
⏱️ Timing
Total: 1450ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 2 | mx0a-00191d01.pphosted.com (pri: 10), mx0b-00191d01.pphosted.com (pri: 10) |
Analysis
Mail Servers
Two mail servers handle cbl.cb.att.com: mx0a-00191d01.pphosted.com and mx0b-00191d01.pphosted.com.
cbl.cb.att.com shares the same mail server setup as other domains, including contractup.att.com, azprv.3pc.att.com, cti.att.com, ramemea.att.com and insider-app.att.com.
cbl.cb.att.com shares some mail servers with other domains, at least partially, for instance h-135-207-255-47.research.att.com.
Host names with a single IP address:
mx0a-00191d01.pphosted.com points to 67.231.149.140
mx0b-00191d01.pphosted.com points to 67.231.157.136