Dataweaz

zoom.com

Summary

Registrar
MarkMonitor Inc.
Status
clientDeleteProhibited
Created on
April 22, 1999
Expires on
December 2, 2027
Name servers
ns-968.awsdns-57.net, ns-481.awsdns-60.com, ns-1861.awsdns-40.co.uk, ns-1473.awsdns-56.org
Mail servers
mxa-00569201.gslb.pphosted.com, mxb-00569201.gslb.pphosted.com
DMARC
Reject
SPF
Soft

Spoofing protection (DMARC)

Reject

E-mails spoofing this domain are rejected.

DMARC tells mail servers what to do with an e-mail that claims to come from zoom.com but fails SPF and DKIM checks.

Policy
Reject
Subdomain policy
Reject
Messages covered
100%
DKIM alignment
Relaxed
SPF alignment
Relaxed
Failure reports
—

Record

v=DMARC1;p=reject;ri=3600;rua=mailto:[email protected],mailto:[email protected];

Authorized senders (SPF)

Soft

E-mails sent by any other server are accepted but flagged as suspicious.

SPF lists the servers allowed to send e-mails for zoom.com.

RuleValueResult
mx—Allowed
include%{ir}.%{v}.%{d}.spf.has.pphosted.comAllowed
include_spf.google.comAllowed
includeamazonses.comAllowed
ip452.38.191.241Allowed
includestspg-customer.comAllowed
exists%{i}._spf.mta.salesforce.comAllowed
ip413.111.2.177Allowed
all—Suspicious

Top-level DNS lookups: 6 of 10 allowed

Record

v=spf1 mx include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.google.com include:amazonses.com ip4:52.38.191.241 include:stspg-customer.com exists:%{i}._spf.mta.salesforce.com ip4:13.111.2.177 ~all

E-mail signing (DKIM)

DKIM keys published by zoom.com under the most common selectors. Other keys may exist under selectors specific to each sending service.

SelectorLikely serviceKeyStatus
googleGoogle WorkspaceRSA 2048 bitsActive
s1SendGridRSA 2048 bitsActive
s2SendGridRSA 2048 bitsActive

MX, SPF, DKIM and DMARC: the e-mail records

Four DNS records make a domain's e-mail work. MX says where e-mails sent to zoom.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from zoom.com was really sent by this domain, which protects it against spoofing.

MX

An MX (Mail Exchanger) record designates a server that receives e-mails sent to the domain. When someone writes to an @zoom.com address, their mail server queries the DNS for the domain's MX records, then delivers the message to the server they point to.

Example record

zoom.com  MX  10 mx1.zoom.com.
zoom.com  MX  20 mx2.zoom.com.

What the record contains

10, 20
Priority: the server with the lowest number is tried first. Servers with equal priority share the load.
mx1.zoom.com.
Host name of the mail server. It must point to an A or AAAA record: an IP address or an alias (CNAME) is not allowed here.
0 .
An MX "0 .", called a null MX, declares that the domain accepts no e-mail: sending servers give up at once instead of retrying.

Declaring at least two servers with different priorities avoids losing e-mails during an outage: sending servers retry for several days and fall back on the backup server. Without any MX, they try to deliver directly to the IP address of the domain.

SPF

SPF (Sender Policy Framework) is a TXT record listing the servers allowed to send e-mails on behalf of the domain. The receiving server checks that the sender is on this list. The final "all" rule says what to do with other servers: reject them (-all), flag their e-mails as suspicious (~all) or make no decision (?all).

Example record

zoom.com  TXT  "v=spf1 mx include:_spf.google.com ip4:192.0.2.10 -all"

What the record contains

v=spf1
Identifies the record as an SPF policy. It must come first.
ip4, ip6
Allows a specific IP address or an address range, for example ip4:192.0.2.0/24.
a, mx
Allows the addresses of the domain itself (A record) or those of its mail servers (MX).
include
Allows the servers of another domain, usually a sending service: include:_spf.google.com for Google Workspace.
-all, ~all
Final rule, applied to every other server. Its qualifier decides what happens to them: - rejects them, ~ flags their e-mails as suspicious, ? makes no decision, + accepts them (avoid it).

A domain must publish only one SPF record, and its evaluation cannot exceed 10 DNS lookups (include, a, mx, exists, redirect). Beyond that, mail servers treat it as invalid.

DKIM

DKIM (DomainKeys Identified Mail) signs every outgoing e-mail with a private key. The matching public key is published in a TXT record at selector._domainkey.zoom.com, so the recipient can check that the message really comes from the domain and was not altered on the way. The selector is chosen by each sending service and cannot be guessed: Dataweaz checks the most common ones (Google Workspace, Microsoft 365, Mailchimp, SendGrid…), so a key published under another selector may exist without appearing here.

Example record

google._domainkey.zoom.com  TXT  "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"

What the record contains

v=DKIM1
Protocol version. Optional but recommended, in which case it must come first.
k
Key algorithm: rsa, the most common, or ed25519.
p
Public key, base64-encoded. An empty value means the key has been revoked.
t
Flags: y marks a key in testing, whose failures must not be penalized; s forbids its use for subdomains.

Each sending service publishes its key under its own selector (google, selector1, k1…), which allows several keys and seamless rotation. A 2048-bit RSA key is recommended today.

DMARC

DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM. Published on _dmarc.zoom.com, it tells mail servers what to do with an e-mail that fails these checks (let it through, send it to spam or reject it) and where to send reports.

Example record

_dmarc.zoom.com  TXT  "v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r"

What the record contains

v=DMARC1
Identifies the record as a DMARC policy. It must come first.
p
Policy applied to e-mails that fail the checks: none (monitoring only), quarantine (spam folder) or reject.
sp
Subdomain policy. Without it, subdomains follow the domain's policy.
rua
Address that receives daily aggregate reports about e-mails sent on behalf of the domain, whether they pass the checks or not.
ruf
Address that receives detailed failure reports, message by message. Few providers still send them.
pct
Percentage of e-mails subject to the policy, for a gradual rollout. 100 by default.
adkim, aspf
DKIM and SPF alignment: r (relaxed, a subdomain of the same domain is enough) or s (strict, the domain must be identical).

To roll out DMARC without blocking legitimate e-mails, start with p=none and an rua address, analyze the reports to find every service sending on behalf of the domain, then move to quarantine and finally to reject.

DNS records of zoom.com

IP addresses (A and AAAA)

An A record maps the domain name to an IPv4 address: the address of the server that browsers contact to display the website. The AAAA record does the same for an IPv6 address. A domain can have several of them to spread visits across several servers.

TypeIP address
A170.114.0.14

Name servers (NS)

NS records designate the authoritative DNS servers of the domain: they answer every question about its other records (A, MX, TXT…). They are provided by the registrar, the hosting provider or a dedicated DNS service, and several servers are declared so that the domain keeps working if one of them fails.

ServerIP address
ns-968.awsdns-57.net205.251.195.200
ns-481.awsdns-60.com205.251.193.225
ns-1861.awsdns-40.co.uk205.251.199.69
ns-1473.awsdns-56.org205.251.197.193

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @zoom.com addresses. Each server has a priority: the one with the lowest number is tried first, the others take over if it fails. Without an MX record, the domain cannot receive e-mails.

PriorityServerIP address
10mxa-00569201.gslb.pphosted.com205.220.166.26
10mxb-00569201.gslb.pphosted.com205.220.178.27

TXT records

TXT records hold free text. They are used to prove ownership of the domain to online services (Google, Microsoft, Facebook…) and to publish e-mail security rules: SPF on the domain itself, DMARC on _dmarc.zoom.com.

NameContent
zoom.comv=DMARC1; p=reject; ri=3600; rua=mailto:[email protected],mailto:[email protected]
zoom.comv=spf1 mx include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.google.com include:amazonses.com ip4:52.38.191.241 include:stspg-customer.com exists:%{i}._spf.mta.salesforce.com ip4:13.111.2.177 ~all
zoom.comHaFoSdUeCSdJo9U8lG@NWZ6vnoRltUteEAl&yuY$$eE25sKJguFH58Lss%9@e73OK#XigH^i3mCDjax&gfZq*90lw4k4Vi3UMpC
zoom.comMS=ms37328709
zoom.comadobe-idp-site-verification=7116ab50a89b2c2402382aea3362209410eac90f2a590f358ce1189d0ca1a8c4
zoom.comanthropic-domain-verification-mzg56s=vpNmDWwfLVSNLFCCywtMb6Hns
zoom.comapple-domain-verification=bzL9n7DPRh8nIyQU
zoom.comatlassian-domain-verification=o4YG+mXlOE6uTJb7uGimcl9DJZnVg4aimBCf/4UrplRJvMk84JnXh2zF8jZz21Fx
zoom.comdocker-verification=5d64ad19-0f15-46a0-9bc3-817e577eb276
zoom.comdropbox-domain-verification=9dklsyoh0ul
zoom.comgoogle-site-verification=0Xz7FWpo9Dn-wcylywsk3klA47thAGsu0sEyQINVV80
zoom.comgoogle-site-verification=k1nKdEppgAfcBIQjwlOflCohpA7U4fc4PhIhwNrHf1c
zoom.comgoogle-site-verification=wa9RTNAmvbZSMxaJqaXeIjJ7NHBNN7xCuBKD1sZuDfY
zoom.comgoogle-site-verification=yiEieNiefNiSqgLq5rY_z_HyZ4HjDX_0yJlJME33_jA
zoom.comh1-domain-verification=5yw85Ewx1obuckMSkZQokfDYewnzdBw9JqKmZWMXqFs2F3cq
zoom.comnintex.5e7289cea709bf0d10e77561
zoom.compardot84442=66c53a10788b0276a0880d5d21a71b44df9a3c5692e545acce46644ea73b1cc6
zoom.coms4pcsx9yj8thv2vb6gh6ryydd05zvcr9
zoom.comsending_domain84442=f09895e4aa7f6a4550421683b7e5d817ba38189dcc438f14daf27125a533de62
zoom.comsmartsheet-site-validation=WHwoPMjyyUbL71JC9sECier4NQyyIVaL
zoom.comspycloud-domain-verification=25022702-4ddc-4746-be61-c2baf9b129e9
zoom.comstripe-verification=56bc5cf2da44b2033da49b45ed3789209db29432268975666693a750ecfde757
_dmarc.zoom.comv=DMARC1;p=reject;ri=3600;rua=mailto:[email protected],mailto:[email protected];
google._domainkey.zoom.comv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzd4GZYWngrWPGjILGOM8+JsWRBE/G2CMRC5u9cYAAPdsl9KLAwc8XhLgP7tj+GulJbOtzyUbNrmJK3EdBJuDY7HR/Iddev4Devb61QO7ylYPsb7Kc1UsRRz598e+m8BTyC92kRCRWu2yA/chyX/IwMi6bD35ta1CHrb6Eb5Dx56dVjj4HUklrYKI/KArpVIMFObth9N0xCEq9x+IIYW+p+u/e0oDkC2U5dO+NObSV/QB+VzUPkIP/+Z+6ABojfzbzdvLFagF/BcmM2v9bTk1Zjxrb2eTPOPYUqvkXNd28mOP4PlCQ9sHWTGGRqUvQeE8qowkP3tiG50EXc1JIYRzzQIDAQAB
s1._domainkey.zoom.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAspw4EkRZEK7IhaprRYp//WGgIsFXbTVXY5FlOhZBMYJtcGfXTwuwgChoaDVnQEtKbx3zPZEaYqiYcGsSio8zYc02kYWwrdDQ1LVU27j1yHd/qcwcECTl2IxuEiOnhH84W2G4TkIDGoUSny9WAmkYjv1DYOOrG6TVLM9DNN51FONvS/hkhYqfvMub2SCDCDXcQDohxuQSnMGrK10yXkx8br/AfYRzyLHdlb1dUO/vgedFeB6cbYUs+AP+fh4Ufic1bAFXBZsHRsdO4VvzgyhgW3d0gypJ7QjkrfBuZ/t+adr/mFbVx8dlGGOmA2hRi34Wa0kDkZQ8agLM1nuMBT70oQIDAQAB
s2._domainkey.zoom.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoCPll1P6U7/is/xzQaXgwgTQ+iTLQ7IbjdJxX3FYRgkkWq5o/lz6RKSKw9pXGu8BRp1wrO5m/FQ5eK4lCbFiJwGqlvM7mAt1aWNSysBkQVk/iANHk2Zp3fnWQobM8J+y6S1M+FGdMtEvfz18CuAat/9jdVdlLW8QKVPIJ63oTfctyl9da3bKbP8g9JLPc/VceP2r7gcCWo+LsTABc4Emn8V7L/bX2pIlcghvcvSBerPwPEndzuml8kC87qnm9SubPmbrRXLkdgwnbmNLJEi3eug4/kwkyceVhGg9qZaECfyzmXaYis+xeBbpR403k8HHR/1VIWof5QofE3yyIeUbtwIDAQAB

Related IP addresses

IPv4 addresses used by zoom.com: website, name servers, mail servers and senders authorized by SPF.

IP addressUsed for/24 block
170.114.0.14Website170.114.0.0/24
205.251.195.200Name server ns-968.awsdns-57.net205.251.195.0/24
205.251.193.225Name server ns-481.awsdns-60.com205.251.193.0/24
205.251.199.69Name server ns-1861.awsdns-40.co.uk205.251.199.0/24
205.251.197.193Name server ns-1473.awsdns-56.org205.251.197.0/24
205.220.166.26Mail server mxa-00569201.gslb.pphosted.com205.220.166.0/24
205.220.178.27Mail server mxb-00569201.gslb.pphosted.com205.220.178.0/24
52.38.191.241Authorized by SPF52.38.191.0/24
13.111.2.177Authorized by SPF13.111.2.0/24

WHOIS of the domain zoom.com

Domain Name: ZOOM.COM
   Registry Domain ID: 5534959_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.markmonitor.com
   Registrar URL: http://www.markmonitor.com
   Updated Date: 2025-10-31T10:59:47Z
   Creation Date: 1999-04-22T04:00:00Z
   Registry Expiry Date: 2027-12-02T04:59:59Z
   Registrar: MarkMonitor Inc.
   Registrar IANA ID: 292
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +1.2086851750
   Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
   Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
   Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
   Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
   Name Server: NS-1473.AWSDNS-56.ORG
   Name Server: NS-1861.AWSDNS-40.CO.UK
   Name Server: NS-481.AWSDNS-60.COM
   Name Server: NS-968.AWSDNS-57.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T16:47:58Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

NOTICE: The expiration date displayed in this record is the date the
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currently set to expire. This date does not necessarily reflect the expiration
date of the domain name registrant's agreement with the sponsoring
registrar.  Users may consult the sponsoring registrar's Whois database to
view the registrar's reported date of expiration for this registration.

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