Dataweaz

smartsheet.com

Summary

Registrar
MarkMonitor Inc.
Status
clientDeleteProhibited
Created on
April 15, 2001
Expires on
April 15, 2030
Name servers
ns-1053.awsdns-03.org, ns-479.awsdns-59.com, ns-696.awsdns-23.net, ns-1673.awsdns-17.co.uk
Mail servers
mxa-0099d701.gslb.pphosted.com, mxb-0099d701.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 smartsheet.com but fails SPF and DKIM checks.

Policy
Reject
Subdomain policy
Reject
Messages covered
100%
DKIM alignment
Relaxed
SPF alignment
Relaxed
Aggregate reports
[email protected]
Failure reports
[email protected]

Record

v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=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 smartsheet.com.

RuleValueResult
include%{ir}.%{v}.%{d}.spf.has.pphosted.comAllowed
all—Suspicious

Top-level DNS lookups: 1 of 10 allowed

Record

v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all

E-mail signing (DKIM)

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

SelectorLikely serviceKeyStatus
googleGoogle WorkspaceRSA 1024 bits · shortActive
s1SendGridRSA 2048 bitsActive

RSA keys shorter than 2048 bits, called short keys, are discouraged: they are easier to break.

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 smartsheet.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from smartsheet.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 @smartsheet.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

smartsheet.com  MX  10 mx1.smartsheet.com.
smartsheet.com  MX  20 mx2.smartsheet.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.smartsheet.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

smartsheet.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.smartsheet.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.smartsheet.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.smartsheet.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.smartsheet.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 smartsheet.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.

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-1053.awsdns-03.org205.251.196.29
ns-479.awsdns-59.com205.251.193.223
ns-696.awsdns-23.net205.251.194.184
ns-1673.awsdns-17.co.uk205.251.198.137

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @smartsheet.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-0099d701.gslb.pphosted.com67.231.152.231
10mxb-0099d701.gslb.pphosted.com67.231.145.78

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.smartsheet.com.

NameContent
smartsheet.comjamf-site-verification=FTxEZ8bdZ-5ecYpJvHQ1kA
smartsheet.comgoogle-site-verification=7hlgUJNZxg3BdIxkjudmRixYJaFCkpHDUJw6avlROns
smartsheet.combugcrowd-verification=8d4227c2a9b7e590c32cb3990d7e7200
smartsheet.comcursor-domain-verification-wej3xv=3l4ZKWyzVfi8NIZvrgEjVu1eq
smartsheet.comslack-domain-verification=v2P4TRQFSdfSVeWVVfzULEnIvTi4JBIjH6b03p1G
smartsheet.comanthropic-domain-verification-hxh7sf=oVyTwviNxbjr6AmbAMsL6cJHn
smartsheet.comUX5-KQ8-TF9
smartsheet.com063a4dcb-0520-43f1-b0ad-4173a9dbbf3e
smartsheet.comadobe-idp-site-verification=56404acead9fe2b15256656a6bd53b05222f0bc35547b6556fe7336e331e6e47
smartsheet.comcentral-10160
smartsheet.comstripe-verification=ada0f91d48011e0e4048bad8056de86898ff90a49858db7ab3a2e9a3492d91f1
smartsheet.comMS=ms45766595
smartsheet.comteamviewer-sso-verification=e9593414df10419f96b0445312fe19cc
smartsheet.comsmartsheet-site-validation=eB0z2pBBd--MoTvEgw8n5PM8X3-BnmKN
smartsheet.comcisco-ci-domain-verification=de48ad4c8b27d4819a0ddb36a703fcb74d8662cffc0947ba03c10493891d481
smartsheet.comsterling-verification=625723ede396481ab8ab714ab83939bd
smartsheet.comgoogle-site-verification=yMuS2AppRL8mECSmGMPwEBMpxDif0HfOK8vq4q7X8oE
smartsheet.commiro-verification=01fa82b8fe6041ea7112d03669e3209a433a11db
smartsheet.comlogmein-verification-code=53ac3fe3-251f-4811-a0a2-5ea3b38f663c
smartsheet.comwZEG4m8pElnUjo/C1IOzcI0qp3VNg9+N8Xsyv8D74lA=
smartsheet.comduo_sso_verification=MVtLUiHPlIsWBatbAU4xPWoC202mg10xjgxMNiRqH7hDAlOnSJBBhp6bWKTBcV8G
smartsheet.comsmartsheet-site-validation=fadQyQfN1bzmewr-QseFnmMl3m6oh06d
smartsheet.comdrift-domain-verification=f51bed4a8f58f49bf2870396c0092a56d5882e9f4780fd963ec783857dd3d0b7
smartsheet.comdocker-verification=a6ddafc0-e200-494c-9d85-bb235bf0aa58
smartsheet.comgoogle-site-verification=VQ-0YEbNBu0bg4z3ocwMtf3g3fHqgxA2gIrAjwQFEuc
smartsheet.comwiz-domain-verification=6878899c8ea6018c7e4d6ae1740a9e20db4f947a31fe1cdeb65a1a6a0f559d65
smartsheet.comcanva-site-verification=EB9G94gYXhiss659mHO6hg
smartsheet.comapple-domain-verification=CSe6pGKtADzd2u5v
smartsheet.comstripe-verification=3c0afc0e1995abddf0ea11067182afcc073eccfb694eb7ac4b9eeffbad694e45
smartsheet.comelevenlabs=7uxIEF33-QXx87nSOmkblcMqn-AG5StycC6nRRywzgM
smartsheet.comMS=ms80059158
smartsheet.comgoogle-site-verification=eQ4UCMktgWKYgBkHURiD9gWqgCpTVbtSX4AWzjOfXe0
smartsheet.comgoogle-site-verification=rEAr4yCbDBk5Efxyyc9mCZ2MHy_rsb2hCzxKijytBu4
smartsheet.comcitrix-verification-code=cfd71eb1-8861-4881-a9f9-618fa3f3f66a
smartsheet.comsmartsheet-gov-site-validation=fJZfH44il11NH3iDKIbGFNSukjo9DFoA
smartsheet.comdocusign=b4b97585-7d68-4397-9e07-e8c5ff9754ff
smartsheet.comMS=ms68437763
smartsheet.comgoogle-site-verification=QQO4LiOhyx4DUjKw6rV5c9jWqvOltjJx1r3hcKA2w5E
smartsheet.comv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
smartsheet.comtraction-guest=036fd639-f1b6-4fa2-92eb-824a3f3425a4
smartsheet.comgoogle-site-verification=teY7md1VBnLY1rgmXyzDDlBc-KRG0LaZa1TEBUGge7g
smartsheet.comMS=D967CA80CF07AA2CDC3454F5F9F1ECC9D22FACD53600
smartsheet.comfacebook-domain-verification=lese4oknsyz8f9fgun8ajob5dv5y8u
smartsheet.com45gVPhssMnvb1WmSp622M57MXnpE5Tom
smartsheet.comgoogle-site-verification=elesh0mmchyHAfw2Vktq4WjRbRhzHixaHbrlTjhdLN8
smartsheet.comstatus-page-domain-verification=l31wpt6jtkbt
smartsheet.comopenai-domain-verification=dv-teRJSJMnpISD4cRCQ5BA4TuP
smartsheet.comgoogle-site-verification=l5GyCdkTo8Fv1TwA0yKUsiNiMAmdkVVGZ_GfDlblxkA
smartsheet.comatlassian-domain-verification=XtjxmKlbTXQpJEa9VinUmGEipF2tFNpFLRTVR9FyUQhR5jsBGorXBfLWsOna7KVx
_dmarc.smartsheet.comv=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
google._domainkey.smartsheet.comv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCVvtevC30oL2jkezD4YBAW+3cpk9DMThon/IyMFrSuVtr8SLnt6lGIt2HJeUJJOJ67r+KZ1QyAA8gdXCqh2I9Z6j2IgxqppeQPTnb2yM74ORBlwe+OS7X1ZzEXwaE1fauYFS/7UOt4vuSh/J8YJI7Owqco8pM+/m6wQr1DN242LQIDAQAB
s1._domainkey.smartsheet.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA30UYgrpxnHzAshzYzW1Ej4hZakZHb8/8SvCMERCC6hneGuv6SR6+Rw1Mpx9NGJ7VP5WZF3Ek8zihTRGDw9a3MqGB4ERKwR/FrGQavQUC9XskR96Xfwd3XFLDtNx4ncuBAQBalGT3ipsGQwSumQuSCHKFJ5ZHIN1fNNb1jqvgC/sa6sZXR1LVtT1FQWcH66YVWF9Vl4kN8byE2KI3amuwtK11NIkT20S4gX68cVefIt5RfdThioLjGZteiFSO/EppCtVAFeCAG2CBOppuOdKr2uI+bmxBOdDsdKFAChmE4RU/uQ2P/CUX9mOJ+biCdlZhGC9GtKq7Vw/h5jeVNgv6bQIDAQAB

Related IP addresses

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

IP addressUsed for/24 block
151.101.130.191Website151.101.130.0/24
151.101.66.191Website151.101.66.0/24
151.101.2.191Website151.101.2.0/24
151.101.194.191Website151.101.194.0/24
205.251.196.29Name server ns-1053.awsdns-03.org205.251.196.0/24
205.251.193.223Name server ns-479.awsdns-59.com205.251.193.0/24
205.251.194.184Name server ns-696.awsdns-23.net205.251.194.0/24
205.251.198.137Name server ns-1673.awsdns-17.co.uk205.251.198.0/24
67.231.152.231Mail server mxa-0099d701.gslb.pphosted.com67.231.152.0/24
67.231.145.78Mail server mxb-0099d701.gslb.pphosted.com67.231.145.0/24

WHOIS of the domain smartsheet.com

Domain Name: SMARTSHEET.COM
   Registry Domain ID: 69280321_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.markmonitor.com
   Registrar URL: http://www.markmonitor.com
   Updated Date: 2021-10-09T15:09:56Z
   Creation Date: 2001-04-15T15:53:40Z
   Registry Expiry Date: 2030-04-15T15:53:40Z
   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
   Name Server: NS-1053.AWSDNS-03.ORG
   Name Server: NS-1673.AWSDNS-17.CO.UK
   Name Server: NS-479.AWSDNS-59.COM
   Name Server: NS-696.AWSDNS-23.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T08:45:58Z <<<

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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registrar.  Users may consult the sponsoring registrar's Whois database to
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