Email infrastructure of iqvia.com

According to Live Direct Marketing's daily DNS scan (September 7, 2026), iqvia.com (Tranco rank #15,405) points its inbound MX to Microsoft 365. Its observed DMARC policy is p=reject. Across this dataset, 47% of DMARC publishers use an enforcing policy; this does not show where a specific message landed.

Last updated: September 7, 2026.

Mailbox provider (MX)	Microsoft 365
ESPs in SPF	none detected
SaaS senders in SPF	none detected
DMARC policy	p=reject
DMARC record	`v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc_aggregate_reports@iqvia.com`
Tranco rank	#15,405
Snapshot	2026-09-07 (updated daily)

Keep an eye on iqvia.com

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How iqvia.com compares

Same daily dataset, three views: how its mailbox provider is trending, how strict DMARC is at its position in the list, and where its own policy sits among all DMARC publishers in the dataset.

Market share of Microsoft 365

DMARC enforced by list position

Policy maturity of all DMARC publishers

From observation to a useful check

What was observed: The DNS records and classifications in this snapshot.
What it means: MX describes inbound mail; SPF authorizes senders.
What is unknown: The actual sending IP, nested SPF dependencies, inbox placement and commercial relationships. MTA-STS, TLS-RPT and BIMI adoption are not measured.
Next check: Verify current DNS and test a real message: run an inbox placement test.

DNS records

Source: OpenINTEL / Tranco. Capture: 2026-09-07. These are answers from the measurement vantage point, not a live DNS check. TTL is the observed cache lifetime in seconds.

iqvia.com · A — Answer records observed

IPv4 addresses for this name. They do not identify the mail server or prove a hosting migration.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

iqvia.com · A · TTL 900 s · 2026-09-07T00:26:46Z · AD=0
162.44.36.51

iqvia.com · AAAA — Unknown: no conclusive answer in this capture

IPv6 addresses for this name. An address record does not test service availability.

iqvia.com · NS — Answer records observed

Name servers listed for the DNS zone.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

iqvia.com · NS · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
ns1.iqvia.com.
iqvia.com · NS · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
ns2.iqvia.com.
iqvia.com · NS · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
ns3.iqvia.com.
iqvia.com · NS · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
ns4.iqvia.com.

iqvia.com · MX — Answer records observed

Servers named to receive mail. Lower preference numbers are tried first.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

iqvia.com · MX · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
10 iqvia-com.mail.protection.outlook.com.

iqvia.com · SOA — Answer records observed

Zone administration data. The serial is a version number, not a creation date or clock.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

iqvia.com · SOA · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
expire=604800; minimum=3600; mname=ns1.iqvia.com.; refresh=28800; retry=1800; rname=hostmaster.iqvia.com.; serial=2026090405

iqvia.com · CAA — Unknown: no conclusive answer in this capture

Rules for certificate issuance. These do not show whether an existing certificate is valid.

iqvia.com · TXT — Answer records observed

Text records can publish mail policies, domain-control challenges or other data.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"00D41000002H3Ms=1TBVp0000000GHh"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"00DEc00000Mwvvi=1TBEc0000000a9y"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"3624153"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"4ge20ht1up9i96qg5lf8kv8j7h"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"5i8h9erf7rek4aa7ncjv21ocip"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"83D008F66F"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"C476-5444-01CD-3BB7-530A-D070-5928-2EA1"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"CA2F-2DE9-4CA9-073C-4854-62EB-0C0D-E06D"
Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"MS=ms24601718"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"anthropic-domain-verification-8y9dvw=20xlSfYf5EMePpdwUnW8z81oD"
Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"apple-domain-verification=cUr8D4tFVNwOGCW5"
Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"atlassian-domain-verification=/y9HkhHjPOlKqBvd5peFRzDwaBNsNL5dq3tKj4GOVPJDvzBDXmJWFlimoGf5a6e8"
Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"atlassian-domain-verification=AmEPqdKyObo0TfEpIHU/NHZTCdwKsKjpR8tT3trAGBWH/0BFupmRgXIOI5htbIfc"
Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"atlassian-domain-verification=fJDPO3OnxqHBTmhdKtzlZEa99doA5o1cmz3hqhfvzABVZ2W/lyD6HahS0WtyL4jx"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"ca3-bb57866c62464b65b5316e03ed121212"
Domain-control verification for Cisco CI; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"cisco-ci-domain-verification=4db105212f267bb293628cf44630632b6fa1e1329016433ca945e0c9ab6152c5"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"cursor-domain-verification-kcbfdg=244fpLU9api1MDLKp5s2SYN0F"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"dn7qkqnfme3ucerng347b2gbs"
Domain-control verification for DocuSign; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"docusign=fcd8e011-4105-4d38-993a-b7a0a186e52c"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"eogggeudb71ig934u1gfh1cq54"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"extensis-domain-verification=511e00be-2751-4da9-8d50-c4ddcb6d67d4"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"fathom_domainchange"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"flexera-domain-verification-aohklizznwiquoos"
Domain-control verification for Google; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"google-site-verification=Kse5k4hT4oDI3WXxuNuOF5YOeK3bTHQYHd1HZhsWIMw"
Domain-control verification for Google; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"google-site-verification=PG5K_WhqpfBBOKHcYuo76N9T9v9BAujcNBRFdLjv5-4"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"jamf-site-verification=K5fp0-0eGVCnds-qztU4vg"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"jc9ojqd99kg7rbidml748r6vr9"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"lucidlink-verification=QAYZ1KKMJQ09F1CHG2M902M0V0"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"nintex.6110bc20985b6f0071783888"
Domain-control verification for OneTrust; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"onetrust-domain-verification=3913258ad3f5427ba3a0d4a49ca20e14"
Domain-control verification for OneTrust; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"onetrust-domain-verification=5e9e72d0f45f41c58c886c4aee52cf97"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"openai-domain-verification=dv-pxKN55iq9mVdm3wQ2qedYHzv"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"paloaltonetworks-site-verification=db0b7db9d5cb93f378d5cb0c2f6c07276e4a902f67bb072597b910408255c297"
Domain-control verification for Pendo; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"pendo-domain-verification=DVYw1_62RWY3jPd6HC4AskTgkDQ"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"psb09svjd270rq02u80t9qgpqe"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"sitecore-domain-verification=408cfdc503bf4393aacc66da41f376f7"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"sitecore-domain-verification=d7004f1733e34c79ab721ff1971c2e28"
Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"slack-domain-verification=oQkrRw8ZlgUFGy6A5QoTWapkgNcVPj4UV7p4FGwK"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"sprout-social-4cd0125b-7ef1-4cee-9491-a473ce3cd12d"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"v26oinf37734iopt1amdeu47lf"
SPF: authorized mail senders; not proof that mail was sent.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"zenqms-domain-verification=1e192139d56cca8f00de629a24d8c0f57116af2c0da5d9156f73820513aa2084"
Other TXT data; its purpose is not established by this measurement.
Raw TXT value
iqvia.com · TXT · TTL 3600 s · 2026-09-07T00:26:46Z · AD=0
"zenqms-domain-verification=535dbb4f49e592bb33750878d3522748961fd991c2515a03d86ee5f7a096dcf1"

iqvia.com · DNSKEY — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

iqvia.com · DS — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

iqvia.com · CDS — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

iqvia.com · CDNSKEY — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

www.iqvia.com · A — Answer records observed

IPv4 addresses for this name. They do not identify the mail server or prove a hosting migration.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

www.iqvia.com · A · TTL 900 s · 2026-09-07T00:26:46Z · AD=0
162.44.36.51

www.iqvia.com · AAAA — Unknown: no conclusive answer in this capture

IPv6 addresses for this name. An address record does not test service availability.

_dmarc.iqvia.com · TXT — Answer records observed

Text records can publish mail policies, domain-control challenges or other data.

Query observed at: 2026-09-07T00:26:46Z.

Response code: 0.

DMARC: published handling and reporting policy for authentication failures.
Raw TXT value
_dmarc.iqvia.com · TXT · TTL 600 s · 2026-09-07T00:26:46Z · AD=0
"v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc_aggregate_reports@iqvia.com"

DNSSEC records are shown only when returned. An unset AD flag is not proof that a zone is unsigned. MTA-STS, TLS-RPT, BIMI and arbitrary DKIM selectors are not measured here; their absence cannot be inferred.

Recorded DNS history

Registry presence: first seen 2026-04-28; last seen 2026-09-07. These are appearances in our domain registry, not domain registration dates or earlier DNS values.

This history starts with saved RR captures. Provider market-share charts are aggregate context, not this domain’s DNS history. Dates identify observations; no continuous validity between them is implied. Equivalent RR states are combined, ignoring response TTL and capture-time changes. Up to 30 distinct RR states and 60 dated captures are retained within a per-domain byte limit.

No earlier different RR snapshot is available for comparison.

Available saved snapshots

2026-09-07 (equivalent state also recorded on 2026-09-05)

Each query below keeps its own observation date; unknown checks may retain older values.