pphosted.com - dns.ninja
pphosted.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1782389540 | ||||||
📈 Tranco rank: #2,969
Proofpoint Email Hosting Infrastructure
pphosted.com is Proofpoint's dedicated email hosting infrastructure domain, used to deliver cloud-based email security services to enterprise customers. Proofpoint is a major cybersecurity company protecting over 80 Fortune 100 companies against email-based threats.
Purpose
The domain serves as the backbone for Proofpoint's hosted email gateway services:
- Mail Routing — Customer MX records point to subdomains like
mx0b-004f2901.pphosted.com, routing email through Proofpoint's filtering infrastructure - SPF Authentication — Provides SPF include mechanisms (
spf.has.pphosted.com) for customer email authentication - GSLB Load Balancing — Uses global server load balancing (GSLB) subdomains for high-availability mail delivery
The domain hosts tens of thousands of customer-specific subdomains for mail routing and security filtering.
DNS Infrastructure
- Nameservers: Dual-provider setup using Proofpoint's own nameservers (
ns1.proofpoint.com,ns3.proofpoint.com) alongside UltraDNS (pdns99.ultradns.com/net/org/biz) for redundancy - Mail Servers:
mx1.proofpoint.com.gslb.pphosted.com(priority 10) andmx2.proofpoint.com.gslb.pphosted.com(priority 15) - IPv4: 67.231.144.185, 67.231.152.185
- IPv6: 2620:100:9001:b9::1, 2620:100:9005:b9::1
- DNSSEC: Not enabled
About Proofpoint
Proofpoint provides email security, threat protection, and compliance solutions. Their platform analyzes over 3.4 trillion emails annually, using AI and machine learning to detect phishing, business email compromise (BEC), ransomware, and malware. The company was acquired by Thoma Bravo in 2021 for $12.3 billion.
Subdomains
Same first word
Similar names
DNS History
17 records (8 active, 9 former)
○NS10.100.14.102018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.100.14.112018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.100.14.122018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.100.14.92018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.110.14.112018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.110.14.122018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.110.14.132018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NS10.110.14.72018-06-26 → 2018-06-26 · 4 obs
● 2018-06-26 14:13:46
○ 2018-07-04 19:48:48
○ 2026-06-25 12:31:18
○NSinfoblox-sc4.ppops.net2021-07-21 → 2021-08-26 · 5 obs
● 2021-07-21 04:09:18
● 2021-08-26 20:52:32
○ 2021-09-07 23:20:32
○ 2026-06-25 12:31:18
●NSns1.proofpoint.com2015-09-04 → 2026-06-25 · 6 obs
● 2021-07-15 11:32:14
○ 2021-07-21 04:09:18
○ 2021-08-26 20:52:32
● 2021-09-07 23:20:32
● 2026-06-25 12:31:18
●NSns3.proofpoint.com2015-09-04 → 2026-06-25 · 2 obs
● 2026-06-25 12:31:18
●NSpdns99.ultradns.biz2015-11-01 → 2026-06-25 · 3 obs
● 2015-11-01 09:39:52
● 2026-06-25 12:31:18
●NSpdns99.ultradns.com2015-11-01 → 2026-06-25 · 3 obs
● 2015-11-01 09:39:52
● 2026-06-25 12:31:18
●NSpdns99.ultradns.net2015-11-01 → 2026-06-25 · 3 obs
● 2015-11-01 09:39:52
● 2026-06-25 12:31:18
●NSpdns99.ultradns.org2015-11-01 → 2026-06-25 · 3 obs
● 2015-11-01 09:39:52
● 2026-06-25 12:31:18
●MXmx1.proofpoint.com.gslb.pphosted.com2015-09-04 → 2026-06-25 · 5 obs
● 2022-01-11 11:27:40
○ 2026-06-20 20:13:48
● 2026-06-20 20:48:50
● 2026-06-25 12:31:18
●MXmx2.proofpoint.com.gslb.pphosted.com2015-09-04 → 2026-06-25 · 5 obs
● 2022-01-11 11:27:40
○ 2026-06-20 20:13:48
● 2026-06-20 20:48:50
● 2026-06-25 12:31:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pphosted.com | ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com... | - |
✅ Authoritative Response
Server:208.84.67.208
NS records: ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com, pdns99.ultradns.biz, pdns99.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for pphosted.com (unsigned zone)
⏱️ Timing
Total: 343ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 6 | ns1.proofpoint.com, pdns99.ultradns.biz... |
| MX | 2 | mx1.proofpoint.com.gslb.pphosted.com (pr, mx2.proofpoint.com.gslb.pphosted.com (pr |
| TXT | 5 | google-site-verification=vRcwt0BAkjp1OlM, google-site-verification=xgpnp2Tk7Uy09Lh... |
| SOA | 1 | ns1.proofpoint.com ops.proofpoint.com |
Analysis
Hierarchy
pphosted.com is a parent domain of mx0b-004f2901.pphosted.com, mx0b-00959201.pphosted.com, mx0b-0025a901.pphosted.com, mx0b-00a44201.pphosted.com, mx0b-00952001.pphosted.com and tens of thousands of other host names.
Name Servers
pphosted.com has 6 name servers — pdns99.ultradns.biz, ns1.proofpoint.com, ns3.proofpoint.com and 3 others.
pphosted.com shares at least some of its name servers with other domains, including sharedvalue.org, proofpointtam-lab.com, wingshootingusa.com and two others.
These name servers are frequently seen alongside the name servers pdns99.ultradns.com, pdns99.ultradns.net, pdns99.ultradns.org and infoblox-sc4.ppops.net.
Host names with two IP numbers:
pdns99.ultradns.biz resolves to 156.154.66.99 and 2610:a1:1015::87.
ns1.proofpoint.com resolves to 208.84.67.208 and 2620:100:9000:1::d0.
ns3.proofpoint.com resolves to 208.84.66.208 and 2620:100:9004:1::d0.
pdns99.ultradns.com resolves to 156.154.64.99 and 2001:502:f3ff::87.
pdns99.ultradns.net resolves to 156.154.65.99 and 2610:a1:1014::87.
pdns99.ultradns.org resolves to 156.154.67.99 and 2001:502:4612::87.
Mail Servers
pphosted.com has two mail servers: mx1.proofpoint.com.gslb.pphosted.com and mx2.proofpoint.com.gslb.pphosted.com.
pphosted.com shares its mail server configuration with other domains, such as pphosted.net and pphosted.org.
pphosted.com shares at least some of its mail servers with other domains, such as thenextpage.org and arcfeeds.proofpoint.com.
These mail servers are frequently seen alongside the mail servers mx2.proofpoint.com.
Both mx1.proofpoint.com.gslb.pphosted.com and mx2.proofpoint.com.gslb.pphosted.com point to the same three IP addresses: 67.231.152.185, 2620:100:9001:b9::1 and 2620:100:9005:b9::1.
The host names mx1.proofpoint.com.gslb.pphosted.com and mx2.proofpoint.com.gslb.pphosted.com both resolve to 2620:100:9001:b9::1 IP addresses.
The host names mx1.proofpoint.com.gslb.pphosted.com and mx2.proofpoint.com.gslb.pphosted.com both resolve to 2620:100:9005:b9::1 IP addresses.
The host names mx1.proofpoint.com.gslb.pphosted.com and mx2.proofpoint.com.gslb.pphosted.com both resolve to 67.231.152.185 IP addresses.