proofpoint.com - robtex.com
proofpoint.com
| DNSSEC | β οΈ Not signed | ||||||
| A | 2a02:e980:e6::cfπΊπΈ IMPERVA2a02:e980:e6::/48 | ||||||
| A | 2a02:e980:13e::cfπΊπΈ IMPERVA2a02:e980:13e::/48 | ||||||
| A | 45.60.151.207πΊπΈ IMPERVA45.60.151.0/24 ORIXCOM via EMIX | ||||||
| A | 45.60.171.207πΊπΈ IMPERVA45.60.171.0/24 ORIXCOM via EMIX | ||||||
| NS | ns1.proofpoint.com β | ||||||
| A | 2620:100:9000:1::d0πΊπΈ Proofpoint2620:100:9000::/47 Inc. | ||||||
| PTR | ns1.proofpoint.com | ||||||
| A | 208.84.67.208πΊπΈ Proofpoint208.84.67.0/24 Inc. | ||||||
| PTR | ns1-at1.proofpoint.com | ||||||
| PTR | ns1.proofpoint.com | ||||||
| PTR | ns5.proofpoint.com | ||||||
| NS | ns3.proofpoint.com | ||||||
| A | 2620:100:9004:1::d0πΊπΈ Proofpoint2620:100:9004::/47 Inc. | ||||||
| PTR | ns3.proofpoint.com | ||||||
| A | 208.84.66.208πΊπΈ Proofpoint208.84.66.0/24 Inc. | ||||||
| PTR | ns1-sc4.proofpoint.com | ||||||
| PTR | ns2.proofpoint.com | ||||||
| PTR | ns3.proofpoint.com | ||||||
| PTR | ns4.proofpoint.com | ||||||
| NS | pdns99.ultradns.biz β οΈ Not in parent delegation | ||||||
| A | 2610:a1:1015::87πΊπΈ MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns99.ultradns.biz | ||||||
| A | 156.154.66.99πΊπΈ MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns99.ultradns.biz | ||||||
| NS | pdns99.ultradns.com β οΈ Not in parent delegation | ||||||
| A | 2001:502:f3ff::87πΊπΈ MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns99.ultradns.com | ||||||
| A | 156.154.64.99πΊπΈ MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns99.ultradns.com | ||||||
| NS | pdns99.ultradns.net β οΈ Not in parent delegation | ||||||
| A | 2610:a1:1014::87πΊπΈ MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns99.ultradns.net | ||||||
| A | 156.154.65.99πΊπΈ MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns99.ultradns.net | ||||||
| NS | pdns99.ultradns.org β οΈ Not in parent delegation | ||||||
| A | 2001:502:4612::87πΊπΈ MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns99.ultradns.org | ||||||
| A | 156.154.67.99πΊπΈ MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns99.ultradns.org | ||||||
| MX | mxa-00148501.gslb.pphosted.com β | ||||||
| A | 2620:100:9001:b9::1πΊπΈ Proofpoint2620:100:9000::/47 Inc. | ||||||
| PTR | mx0a-00148501.pphosted.com | ||||||
| A | 2620:100:9005:b9::1πΊπΈ Proofpoint2620:100:9004::/47 Inc. | ||||||
| PTR | mx0b-00148501.pphosted.com | ||||||
| A | 67.231.152.185πΊπΈ Proofpoint67.231.152.0/24 Inc. | ||||||
| PTR | mx0b-00148501.pphosted.com | ||||||
| MX | mxb-00148501.gslb.pphosted.com β | ||||||
| A | 2620:100:9001:b9::1πΊπΈ Proofpoint2620:100:9000::/47 Inc. | ||||||
| PTR | mx0a-00148501.pphosted.com | ||||||
| A | 2620:100:9005:b9::1πΊπΈ Proofpoint2620:100:9004::/47 Inc. | ||||||
| PTR | mx0b-00148501.pphosted.com | ||||||
| A | 67.231.144.185πΊπΈ Proofpoint67.231.144.0/24 Inc. | ||||||
| PTR | mx0a-00148501.pphosted.com | ||||||
| MX | mx0a-00148501.pphosted.com(15) | ||||||
| A | 2620:100:9001:b9::1πΊπΈ Proofpoint2620:100:9000::/47 Inc. | ||||||
| PTR | mx0a-00148501.pphosted.com | ||||||
| A | 67.231.144.185πΊπΈ Proofpoint67.231.144.0/24 Inc. | ||||||
| PTR | mx0a-00148501.pphosted.com | ||||||
| MX | mx0b-00148501.pphosted.com(15) | ||||||
| A | 2620:100:9005:b9::1πΊπΈ Proofpoint2620:100:9004::/47 Inc. | ||||||
| PTR | mx0b-00148501.pphosted.com | ||||||
| A | 67.231.152.185πΊπΈ Proofpoint67.231.152.0/24 Inc. | ||||||
| PTR | mx0b-00148501.pphosted.com | ||||||
| TXT | docusign=2c075292-2334-4a0a-bf3b-71a084c9d0fb | ||||||
| TXT | anthropic-domain-verification-y3m137=qK0cxjmQtPkMGPQe9LKVeGZj2 | ||||||
| TXT | jamf-site-verification=VBoaCJNLZhZnSeap1YIWPA | ||||||
| TXT | webexdomainverification.=482d75bd-f93a-4b08-b9fd-f29cd4ac460f | ||||||
| TXT | google-site-verification=VneCes71bA1smMZFJ8bue3Hjjr5PSH2Nw3vXuBFdSOk | ||||||
| TXT | amazonses:q2hxXWvaOdgjhubWnZufuUhKgLZxfL3PoI4cptrU0gY= | ||||||
| TXT | google-site-verification=uWpkNlmQfQH0hCnGWrr7ZC-o3dx4Dgi--DSZL1wtBoQ | ||||||
| TXT | pendo-domain-verification=d131a0e2-664a-4230-ba51-0acf99fb4b90 | ||||||
| TXT | MS=ms66915438 | ||||||
| TXT | _github-challenge-proofpoint-2=b5790c8e0b | ||||||
| TXT | 7zjqogz6pipkgcunowrzlr2kk4zzbvui | ||||||
| TXT | google-site-verification=h87yGt3EWJfCkagvPwOKkK1h1LGCdoBROU_kKbrdXPk | ||||||
| TXT | cursor-domain-verification-wqe15z=RzypHif5XX1tmT2h6yen8EF3t | ||||||
| TXT | docusign=024d71b2-0e97-4a12-b5d5-59f1398496df | ||||||
| TXT | google-site-verification=8gLyzJZLKfsYAHDKstNMwKKI-IB8zB3LPVBe8wyo7fw | ||||||
| TXT | docker-verification=13460241-226e-4d29-97e7-4699d62bb596 | ||||||
| TXT | google-site-verification=mM60vv41HV36Nx6G5NAk93Se7Z-Y1eWeetnizsR6zLA | ||||||
| TXT | iJdvOvZ2JpKKuGmHz3m7jyiT9LcUpxjwXIqy0lreXX41M/DqvOyKHQQTBtOFMviSL7SN6As/3CMKH... | ||||||
| TXT | globalsign-domain-verification=60999847F58FB37C020BB434D74EF1A9 | ||||||
| TXT | linear-domain-verification=cxrv67j8mq6e | ||||||
| TXT | apple-domain-verification=nOC9FciUgMGXDPqR | ||||||
| TXT | asv=9465dad26feb30e29b83613f5c02a1de | ||||||
| TXT | lfj1tq15csyc72w7bgdt23nv5sfdhbwv | ||||||
| TXT | atlassian-sending-domain-verification=37b6750b-3b8f-46dc-b2fa-c576d7d1965c | ||||||
| TXT | flvpf3txfi5s6mfi6q4gzths63zkgyh6 | ||||||
| TXT | BrG8ZlodJgGfUFj4RAmd28PHnIIHvBj56NGkzIIO3vwg0JUlTJISPsRo95V8+8QR0RY+aBIl21ch7... | ||||||
| TXT | google-site-verification=sxZ-0Tdu9HaAjWzo8TkbC3Dcvbm9_TcCFaOUJhBGf1E | ||||||
| TXT | atlassian-domain-verification=ehSV5ixRwTbI5wbth6qsMh3hGCusuawwQB3RtCdRGUyVC/h... | ||||||
| TXT | 8g643mlg95390t9m27yhh8ccc3djh9kl | ||||||
| TXT | 3138e5c5-9798-41bb-a66a-f0b02555197b | ||||||
| TXT | adobe-idp-site-verification=5bd692aa8ee1d148c00aac26f7ead08c64182725034dcf069... | ||||||
| TXT | v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ip4:91.209.104.0/25 a:spf... | ||||||
| TXT | fastly-domain-delegation-3yF86BWSvK5eKtB4-875817-2025-01-23 | ||||||
| TXT | openai-domain-verification=dv-nIygpFUM4qrdLLDyQoKeI6q7 | ||||||
| TXT | smartsheet-site-validation=wDwCVDKaaE7jlmu8UfmZC7R_CVdVDt1n | ||||||
| TXT | zoom-domain-verification=ZOOM_verify_10035bd9568f4feca52a7a00fe69b79a | ||||||
| TXT | amazonses:RlrTC7/Tv/cDEgJBOGnvF+fa+JgATSOhAby33zYuhWU= | ||||||
| TXT | sl5htyxuslipmbdhyy7s5dpjweyuohqd | ||||||
| SOA | ns1.proofpoint.comops@proofpoint.com serial=2018115000 | ||||||
com
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a.gtld-servers.net β | ||||||
| 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=1783088936 | ||||||
rank #387 in the tld
proofpoint.com
Proofpoint.com is the corporate website and product portal of Proofpoint, Inc., a major American cybersecurity company specializing in email security, anti-phishing, threat intelligence, and data-loss prevention.
Key facts
- Owner / operator: Proofpoint, Inc. (privately held; owned by Thoma Bravo since 2021)
- TLD:
.comβ gTLD - Primary purpose: Corporate website, product documentation, and cloud security-service delivery portal
- Status: Active
History
| Year | Event |
|---|---|
| 2002 | Proofpoint, Inc. founded in Sunnyvale, California |
| 2012 | IPO on NASDAQ |
| 2021 | Acquired by private-equity firm Thoma Bravo for approximately $12.4 billion; taken private |
Related domains
proofpointessentials.comβ SMB-focused product line (Proofpoint Essentials)
WOT: SAFE (78/100)
π Tranco rank: #2,186
Subdomains
cr-vrrp-101-at1.proofpoint.com |
sjc71.proofpoint.com |
sjc117.proofpoint.com |
ravpn-test-at1.proofpoint.com |
social.proofpoint.com |
mx1.proofpoint.com |
bugzilla01.proofpoint.com |
pdrv2ns-at1.proofpoint.com |
sjc125.proofpoint.com |
sjc87.proofpoint.com |
mx2.proofpoint.com |
sjc119.proofpoint.com |
prs-fra.proofpoint.com |
prscollect-ut7.proofpoint.com |
go.proofpoint.com |
pdrv2ns-sc4.proofpoint.com |
sjc76.proofpoint.com |
itd.proofpoint.com |
sjc115.proofpoint.com |
cr001-ge-0-0-1-101-sc4.proofpoint.com |
sa-at1.proofpoint.com |
api-pentest.proofpoint.com |
smtp-bra.proofpoint.com |
ntp5.proofpoint.com |
bl.proofpoint.com |
hks-eu-fra.proofpoint.com |
attachmentdefense-at1.proofpoint.com |
api-ut7.proofpoint.com |
pdus-test-at1.proofpoint.com |
sjc93.proofpoint.com |
enduserauth.proofpoint.com |
208-84-66-227.proofpoint.com |
cr001-ge-2-0-2-sc4.proofpoint.com |
gslb.proofpoint.com |
outreach.proofpoint.com |
englab-nat.proofpoint.com |
securemail.proofpoint.com |
cr4002.proofpoint.com |
pdus-fra-external.proofpoint.com |
update3.proofpoint.com |
jh7001.proofpoint.com |
mts-sc4-test.proofpoint.com |
sjc106.proofpoint.com |
sjc85.proofpoint.com |
prscollect.proofpoint.com |
ns-snv.proofpoint.com |
sjc112.proofpoint.com |
ravpn-onespan-sc4.proofpoint.com |
pdus.proofpoint.com |
assets.proofpoint.com |
emaildefense.proofpoint.com |
pdrv2ns-fra.proofpoint.com |
update-ams-external.proofpoint.com |
pphadm7004.proofpoint.com |
ccs-sc4.proofpoint.com |
sjc79.proofpoint.com |
update-fra-external.proofpoint.com |
zerohour2.proofpoint.com |
pphadm8003.proofpoint.com |
lb004-ge-11-12-at1.proofpoint.com |
ns-sc4.proofpoint.com |
ns1-at1.proofpoint.com |
ns1-sc4.proofpoint.com |
resource-download.proofpoint.com |
pdus-test-sc4.proofpoint.com |
continuity-us3.proofpoint.com |
v6.proofpoint.com |
social1.proofpoint.com |
sa4001.proofpoint.com |
sjc103.proofpoint.com |
social2.proofpoint.com |
essentials.proofpoint.com |
vpn.proofpoint.com |
208-84-66-228.proofpoint.com |
ns4.proofpoint.com |
prs-sc4.proofpoint.com |
sjc89.proofpoint.com |
esbilling.proofpoint.com |
sjc69.proofpoint.com |
prod-c15a-awsuse.proofpoint.com |
share.proofpoint.com |
prs-ams.proofpoint.com |
208-84-67-21.proofpoint.com |
lb002-ge-11-12-at1.proofpoint.com |
sjc86.proofpoint.com |
208-84-66-226.proofpoint.com |
em.proofpoint.com |
ns-fra.proofpoint.com |
cr001-ge-0-0-1-100-at1.proofpoint.com |
sjc104.proofpoint.com |
sjc68.proofpoint.com |
lb001-ge-11-12-sc4.proofpoint.com |
cr002-ge-0-0-1-100-sc4.proofpoint.com |
62-209-51-220.proofpoint.com |
jh8001.proofpoint.com |
prod-c15a-awseuc.proofpoint.com |
fw8001.proofpoint.com |
cr001-ge-0-0-0-105-at1.proofpoint.com |
62-209-51-224.proofpoint.com |
filereputation.proofpoint.com |
fsecure.proofpoint.com |
prscollect-sc4.proofpoint.com |
cr002-ge-2-0-2-sc4.proofpoint.com |
social3.proofpoint.com |
pdus-ams.proofpoint.com |
dl1-at1.proofpoint.com |
cts1.proofpoint.com |
arcdata.proofpoint.com |
sjc66.proofpoint.com |
cts3-api.proofpoint.com |
cr002-ge-0-0-1-100-at1.proofpoint.com |
cr-vrrp-101-sc4.proofpoint.com |
admin1001.proofpoint.com |
api-sc4.proofpoint.com |
ntp-sc4.proofpoint.com |
ns2-sc4.proofpoint.com |
ns-ut7.proofpoint.com |
prsns2.proofpoint.com |
ravpn-at1.proofpoint.com |
pdrv2ns-ams.proofpoint.com |
fw001-ge-0-2-101-sc4.proofpoint.com |
pages.proofpoint.com |
connectpt2.proofpoint.com |
ns-at1.proofpoint.com |
prod-c15b-awsuse.proofpoint.com |
socialsandbox.proofpoint.com |
zerohour.proofpoint.com |
208-84-66-225.proofpoint.com |
pdus-at1.proofpoint.com |
ntp2.proofpoint.com |
support-cts.proofpoint.com |
Same first word
Similar names
DNS History
24 records (14 active, 10 former)
βNSinfoblox-sc4.ppops.net2021-07-24 β 2021-07-24 Β· 4 obs
β 2021-07-24 05:52:14
β 2021-09-02 08:46:58
β 2026-07-03 14:46:12
βNSns1.proofpoint.com2009-01-28 β 2026-07-03 Β· 5 obs
β 2021-06-19 02:17:30
β 2021-07-24 05:52:14
β 2021-09-02 08:46:58
β 2026-07-03 14:46:12
βNSns2.proofpoint.com2009-01-28 β 2009-01-28 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βNSns3.proofpoint.com2009-01-28 β 2026-07-03 Β· 2 obs
β 2026-07-03 14:46:12
βNSpdns99.ultradns.biz2015-10-31 β 2026-07-03 Β· 3 obs
β 2015-10-31 10:05:26
β 2026-07-03 14:46:12
βNSpdns99.ultradns.com2015-10-31 β 2026-07-03 Β· 3 obs
β 2015-10-31 10:05:26
β 2026-07-03 14:46:12
βNSpdns99.ultradns.net2015-10-31 β 2026-07-03 Β· 3 obs
β 2015-10-31 10:05:26
β 2026-07-03 14:46:12
βNSpdns99.ultradns.org2015-10-31 β 2026-07-03 Β· 3 obs
β 2015-10-31 10:05:26
β 2026-07-03 14:46:12
βMXmx0a-00148501.pphosted.com2015-07-22 β 2026-07-03 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βMXmx0b-00148501.pphosted.com2015-07-22 β 2026-07-03 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βMXmx1.proofpoint.com.gslb.pphosted.com2009-01-28 β 2009-01-28 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βMXmx2.proofpoint.com2009-01-28 β 2018-11-16 Β· 4 obs
β 2018-11-16 20:54:04
β 2019-01-18 13:10:14
β 2026-07-03 14:46:12
βMXmx2.proofpoint.com.gslb.pphosted.com2009-01-28 β 2009-01-28 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βMXmxa-00148501.gslb.pphosted.com2015-07-22 β 2026-07-03 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βMXmxb-00148501.gslb.pphosted.com2015-07-22 β 2026-07-03 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βA192.230.66.1352015-07-22 β 2019-10-30 Β· 5 obs
β 2015-07-22 20:35:02
β 2019-10-30 11:09:56
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA192.230.74.1352015-07-22 β 2019-10-30 Β· 5 obs
β 2015-07-22 20:35:02
β 2019-10-30 11:09:56
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA198.66.250.72009-01-28 β 2009-01-28 Β· 3 obs
β 2015-07-22 20:35:02
β 2026-07-03 14:46:12
βA2a02:e980:11::872015-07-22 β 2019-10-30 Β· 5 obs
β 2015-07-22 20:35:02
β 2019-10-30 11:09:56
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA2a02:e980:13e::cf2020-01-30 β 2026-07-03 Β· 3 obs
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA2a02:e980:17::872015-07-22 β 2019-10-30 Β· 5 obs
β 2015-07-22 20:35:02
β 2019-10-30 11:09:56
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA2a02:e980:e6::cf2020-01-30 β 2026-07-03 Β· 3 obs
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA45.60.151.2072020-01-30 β 2026-07-03 Β· 3 obs
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
βA45.60.171.2072020-01-30 β 2026-07-03 Β· 3 obs
β 2020-01-30 18:00:32
β 2026-07-03 14:46:12
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| proofpoint.com | ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com... | 6 records |
β 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
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for proofpoint.com (unsigned zone)
β±οΈ Timing
Total: 286ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 45.60.151.207, 45.60.171.207 |
| AAAA | 2 | 2a02:e980:e6::cf, 2a02:e980:13e::cf |
| NS | 6 | pdns99.ultradns.net, pdns99.ultradns.com... |
| MX | 4 | mx0b-00148501.pphosted.com (pri: 15), mx0a-00148501.pphosted.com (pri: 15)... |
| TXT | 38 | jamf-site-verification=VBoaCJNLZhZnSeap1, 8g643mlg95390t9m27yhh8ccc3djh9kl... |
| SOA | 1 | ns1.proofpoint.com ops.proofpoint.com |
π Glue Records Collected
Total: 6
In-bailiwick: 4 (ns1.proofpoint.com, ns1.proofpoint.com, ns3.proofpoint.com...)
Out-of-bailiwick: 2 (pdns99.ultradns.com, pdns99.ultradns.com)
Analysis
Hierarchy
proofpoint.com acts as a parent domain for cr-vrrp-101-at1.proofpoint.com, sjc71.proofpoint.com, sjc117.proofpoint.com, ravpn-test-at1.proofpoint.com, social.proofpoint.com and hundreds of other host names beneath it.
IP Addresses
proofpoint.com has four IP addresses: 45.60.151.207, 45.60.171.207, 2a02:e980:e6::cf and 2a02:e980:13e::cf.
proofpoint.fail, proofpoint.fr, wombatsecurity.com plus two other host names have IP numbers in common with proofpoint.com.
Name Servers
proofpoint.com delegates authority to 6 name servers: pdns99.ultradns.biz, ns1.proofpoint.com, ns3.proofpoint.com plus 3 other.
proofpoint.com has at least partial name server overlap with other domains, such as cloudmark.ie, tp-heatnetworks.org, proofpoint.com.sg and two others.
It is common to find these name servers paired with the name servers pdns99.ultradns.com, pdns99.ultradns.net, pdns99.ultradns.org and infoblox-sc4.ppops.net.
Host names pointing to two IP addresses:
pdns99.ultradns.biz directs traffic to 156.154.66.99 and 2610:a1:1015::87.
ns1.proofpoint.com directs traffic to 208.84.67.208 and 2620:100:9000:1::d0.
ns3.proofpoint.com directs traffic to 208.84.66.208 and 2620:100:9004:1::d0.
pdns99.ultradns.com directs traffic to 156.154.64.99 and 2001:502:f3ff::87.
pdns99.ultradns.net directs traffic to 156.154.65.99 and 2610:a1:1014::87.
pdns99.ultradns.org directs traffic to 156.154.67.99 and 2001:502:4612::87.
Mail Servers
Four mail servers handle email for proofpoint.com: mx0a-00148501.pphosted.com, mx0b-00148501.pphosted.com, mxa-00148501.gslb.pphosted.com and mxb-00148501.gslb.pphosted.com.
At least some of the mail servers used by proofpoint.com are shared with other domains: socialware.com, dathena.io, proofpoint.com.au and two others among them.
It is common to find these mail servers paired with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com, as well as two others.
Host names carrying three IP numbers:
The hostname mxa-00148501.gslb.pphosted.com directs to 67.231.152.185, 2620:100:9001:b9::1 and 2620:100:9005:b9::1.
The hostname mxb-00148501.gslb.pphosted.com directs to 67.231.144.185, 2620:100:9001:b9::1 and 2620:100:9005:b9::1.
Host names pointing to two IP addresses:
mx0a-00148501.pphosted.com directs traffic to 67.231.144.185 and 2620:100:9001:b9::1.
mx0b-00148501.pphosted.com directs traffic to 67.231.152.185 and 2620:100:9005:b9::1.
Three host names point to 2620:100:9001:b9::1: mxa-00148501.gslb.pphosted.com, mxb-00148501.gslb.pphosted.com and mx0a-00148501.pphosted.com.
Three host names point to 2620:100:9005:b9::1: mxa-00148501.gslb.pphosted.com, mxb-00148501.gslb.pphosted.com and mx0b-00148501.pphosted.com.
Both mxa-00148501.gslb.pphosted.com and mx0b-00148501.pphosted.com resolve to 67.231.152.185 IP addresses each.
Both mxb-00148501.gslb.pphosted.com and mx0a-00148501.pphosted.com resolve to 67.231.144.185 IP addresses each.