Dataweaz

wetransfer.com

Summary

Registrar
Key-Systems GmbH
Status
clientTransferProhibited
Created on
December 14, 2007
Expires on
December 14, 2026
Name servers
ns-381.awsdns-47.com, ns-1743.awsdns-25.co.uk, ns-616.awsdns-13.net, ns-1495.awsdns-58.org
Mail servers
aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com
DMARC
Reject
SPF
Strict
DKIM
6 keys found
Website
See the website

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 wetransfer.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
—

Record

v=DMARC1; p=reject; rua=mailto:[email protected]; pct=100;

Authorized senders (SPF)

Strict

E-mails sent by any other server are rejected.

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

RuleValueResult
includespf1.wetransfer.comAllowed
includeservers.mcsv.netAllowed
include_spf.google.comAllowed
includemail.zendesk.comAllowed
includemailsenders.netsuite.comAllowed
all—Rejected

Top-level DNS lookups: 5 of 10 allowed

Record

v=spf1 include:spf1.wetransfer.com include:servers.mcsv.net include:_spf.google.com include:mail.zendesk.com include:mailsenders.netsuite.com -all

E-mail signing (DKIM)

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

SelectorLikely serviceKeyStatus
googleGoogle WorkspaceRSA 2048 bitsActive
k1MailchimpRSA 1024 bits · shortActive
s1SendGridRSA 2048 bitsActive
s2SendGridRSA 1024 bits · shortActive
zendesk1ZendeskRSA 2048 bitsActive
zendesk2ZendeskRSA 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 wetransfer.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from wetransfer.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 @wetransfer.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

wetransfer.com  MX  10 mx1.wetransfer.com.
wetransfer.com  MX  20 mx2.wetransfer.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.wetransfer.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

wetransfer.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.wetransfer.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.wetransfer.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.wetransfer.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.wetransfer.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 wetransfer.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
A13.249.228.63
A13.249.228.123
A13.249.228.124
A13.249.228.94

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-381.awsdns-47.com205.251.193.125
ns-1743.awsdns-25.co.uk205.251.198.207
ns-616.awsdns-13.net205.251.194.104
ns-1495.awsdns-58.org205.251.197.215

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @wetransfer.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
1aspmx.l.google.com74.125.71.27
5alt2.aspmx.l.google.com142.251.127.26
5alt1.aspmx.l.google.com192.178.213.27
10alt3.aspmx.l.google.com172.253.148.26
10alt4.aspmx.l.google.com142.250.147.26

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.wetransfer.com.

NameContent
wetransfer.comgoogle-site-verification=o1-Z5_XysLkNRL_Fr0XzMxTNDGCHoVJzwmOgG5apYrs
wetransfer.comv=spf1 include:spf1.wetransfer.com include:servers.mcsv.net include:_spf.google.com include:mail.zendesk.com include:mailsenders.netsuite.com -all
wetransfer.comgoogle-site-verification=QgqEa_4yOMSHcWSMtJrG4M0jeBwKBK07p7E5A73Ht_Q
wetransfer.comgoogle-site-verification=L4cTbeDJCawV2WcUBdIg0ZohUIzmQsyri0cW9Vfx3ms
wetransfer.comlemlist-verif=3a27e226
wetransfer.comwrike-verification=MTc5Mjk4MTpjOWI1MzY4ODdmMGU4ZDA1NDI4MWJiM2ZkYmJhMmE0YzMzMmVkOTUyMjg0MWZjNWFhZTY2YjliOWMyMDExY2M4
wetransfer.comgoogle-site-verification=XW_EN8p8Aq6F0vXQo8QJFXTzZH3bHQnLYA4TFyPN63E
wetransfer.comrippling-domain-verification=217697edd61756fc
wetransfer.comgoogle-site-verification=ZdmG6lG1KKqyINxvbgMYMLtigj2Zjc5qasxPp7ikZ3I
wetransfer.comapple-domain-verification=HVcqj6adUo39535i
wetransfer.com_1l13uk3o31dwxht8gy20uftkq7njy9i
wetransfer.comatlassian-domain-verification=SvE4jaub7awLiMuXWZa/MJuI10LQaiwUVcYdQa2xKuCB6Y6dKD9Z9olL9iVfyJed
wetransfer.comonetrust-domain-verification=2580b3683efb4e6f91ea1440cc1bee77
wetransfer.comZOOM_verify_KL0Tx6QHRE-pFo1TUH489w
wetransfer.comadobe-idp-site-verification=27c19071d43cf50bb319f12dca1b494fb4ac78700f01158bc53c750a64a62677
wetransfer.comdocusign=d8951d4e-554f-42ad-878e-a8cfa144f728
wetransfer.comairtable-verification=1424b5a97e88024b52c0d21bf8a1cd64
wetransfer.comstripe-verification=448ebe2b06a2eba394d9e73a16a897dee98918e6e8593961f56e86bb6296c520
wetransfer.comgoogle-site-verification=pZwqaQca9efqhei-uJPD1AYhimUB37qXYq-2jvp-mhc
wetransfer.comamazonses:OkYxgsklLbk4Efq6tshR+hWtLlWSmWy6A49YvL6zwqw=
wetransfer.comibmid=0b0660a3-b186-469a-8b70-25eac0c5a095
wetransfer.comfacebook-domain-verification=h9w15klgw91n2ot3lw77t035wqw2vb
wetransfer.comNotion_verify_4qsvK9AQNWyTTydLGyF3ysuoJuYcgPfo6qzsKeWsJba9ayET3MJsMLQA2AhsM6HGMa7UL
wetransfer.comanthropic-domain-verification-v74473=mmo7JLEzQN3oOrEhxNuzyUxja
wetransfer.comslack-domain-verification=wvKukMkbZSVirrbxUeRN90GH6W7HoJVKjCqpdsCc
wetransfer.comMS=ms33481336
wetransfer.comgoogle-site-verification=22yq8uEpGxlFe2r7H413v6Wor4yaJDF_XM0wsOxoXjs
wetransfer.comnotion-domain-verification=Yg69TXpuZUoTBv5Ri6zQhMtHrF7gDDypUiwiwsKcc8Q
wetransfer.comgoogle-site-verification=12Dz3BKB7bWfhvTLookytJl2LUfhuheBky3SokggYkc
wetransfer.comasv=89178be4f98e857aed14bc7a748446eb
wetransfer.comjamf-site-verification=EPAkOUuclyfbWuPrE4bFJg
wetransfer.comgoogle-site-verification=psmb0t3fy95_06_HZTTKA42vG8jQp8utdBMGYCgbJn8
_dmarc.wetransfer.comv=DMARC1; p=reject; rua=mailto:[email protected]; pct=100;
google._domainkey.wetransfer.comv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhC0ZpArAITh9duGqJhopm+ZKsdz/ggo2YRGQG2IgtnoG1toNoghzY3PwPr+b53oZjD7hHVRuoDC0SY92VxP3DNebKrt7iJY4qjQPfMKeSfX8DCqzcL2LXk4nPTAwtudgJ3jdh7Zaa/ymWebalenE26C8aeiikmd0TXHU+t/hDRQVhq9sHddiQUBckrU4sRqCqz3icgVhrKheXYixMtZHyvRppu6Bl8S2UiBaXtF8q9BALiYF05KwO2+Sc+Vqf0ky4BVqnkPXMo4vnjki5g+ECAj7Bgr0Uxqxe1xothyfDh9j0IPAfKQxV9w88pR9oGfjBHSj+TWwISESR2PmFgcWzQIDAQAB
k1._domainkey.wetransfer.comk=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUoNyIR4Bn84LVcfZE20rmDeXQblIupNWBqLXM1Q+VieI/eZu/7k9/vOkLSaQQdml4Cv8lb3PcnluMVIhQIDAQAB;
s1._domainkey.wetransfer.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsz1yfMmtZy7ZX0c+Ut2DR0hQR1f7aLNynCzRBUK03mkobLiYUtoURFZSSh9fU59pObuayEVlNHFRcg6mZl1iSxy0LlLsj8lc4Te3kadocwS0fHE2iPdZYAkyqSNg+M8rpA1UEd1BQc1/gdOi3yAfLrIzxEzBd2HhZuwGaeYrExUFrOeI5Vnqq4wrcZbYIna+xK+3bEoQchQ9VYfvZBsJmKnb5pTszCO3ua3V5sF5FDzJeWTYgFMUEpYRGLDd9jUYYo0W+kJ/BTcAbZoHcl8SSpkutuuJBzg/2TGZNKZ0iALxn1tLxcmoYjFN6yZbdd153SYK57DwWPsQ0/xHcyQdSwIDAQAB
s2._domainkey.wetransfer.comk=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCpyhB1HRZ9zU1OVJ5Q0/TpzTlNMxTXVR/okdkLw69177y1vZqdAmEYddWPRreuFiPi8rUficn003iSPHkgSa3BDU16Tf+6aJD+hb2wuXrkhfivLWEamrgv8aHKOhMsyZjeyfdRN+aoxt+32SRHjShGNYOSapt0czx76eqOuH7gxQIDAQAB
zendesk1._domainkey.wetransfer.comv=DKIM1;t=s;n=core;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9IqdLrO3Zr2/56MHt8oQVCQorP0Bl2Fz9sM2tFBnJCdB/HogQmuudEg2xAovCN2PYpw44UijIvPuBoT9vxiv6ZCBJTLJXa82r6ke5rE4tbe9NKFIrVIb9S306cJDrnKFMDb8p0dU/Su0+eUR5gVAOtCuz2L8HAzs5edvsEvD/Fb4ny1RLNSEPZkIQLfGhVxQeWANm3+1Jwb/OBVXV9k0nKpWrpgqcmO7NzroJirp014RQY7rGi60JLUubc6XhvoFQBQrtOAdVlZC5wvfS1bgpq5kQpdP7cajIqWCeqxPTeo0ZUpey2ZcaygEsZz0Z3Gs5wDzyuqd7/ADpr2jNF7ozwIDAQAB
zendesk2._domainkey.wetransfer.comv=DKIM1; t=s; n=core; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmiSFNkgXrO3I8aOaPONDZWHv027rkiGIwb838OyXPgvFDEkCV/qGcdXSjZnaVAadrTm/oKnL8WOltP9zB1FLEuKt0fTi5zRyKPE4oIYCnEzXwrGqzjUcCABQBawQVqvXjDOaYh9Lhp8W5PYOLo905vRW7ipyIMDhuzBOJls91/WWXnNK0OwP3RghiisZjA3K2KqtRwf7w6GjNeNuAMNhvcmgAN15d/mhK+dev/hcRbal66RoYyTD8c0F0isahWH0envEX8aj+SBhheNk0/U37dGE+4nFaY5yP9CUlYjFKDSIKZgHzG4Hci3t/RubU58pi6BCrQQdAFvIOeDFeCZ0ywIDAQAB

Related IP addresses

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

IP addressUsed for/24 block
13.249.228.63Website13.249.228.0/24
13.249.228.123Website13.249.228.0/24
13.249.228.124Website13.249.228.0/24
13.249.228.94Website13.249.228.0/24
205.251.193.125Name server ns-381.awsdns-47.com205.251.193.0/24
205.251.198.207Name server ns-1743.awsdns-25.co.uk205.251.198.0/24
205.251.194.104Name server ns-616.awsdns-13.net205.251.194.0/24
205.251.197.215Name server ns-1495.awsdns-58.org205.251.197.0/24
74.125.71.27Mail server aspmx.l.google.com74.125.71.0/24
142.251.127.26Mail server alt2.aspmx.l.google.com142.251.127.0/24
192.178.213.27Mail server alt1.aspmx.l.google.com192.178.213.0/24
172.253.148.26Mail server alt3.aspmx.l.google.com172.253.148.0/24
142.250.147.26Mail server alt4.aspmx.l.google.com142.250.147.0/24

WHOIS of the domain wetransfer.com

Domain Name: WETRANSFER.COM
   Registry Domain ID: 1354919513_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.rrpproxy.net
   Registrar URL: http://www.key-systems.net
   Updated Date: 2025-12-15T08:14:49Z
   Creation Date: 2007-12-14T12:03:32Z
   Registry Expiry Date: 2026-12-14T12:03:32Z
   Registrar: Key-Systems GmbH
   Registrar IANA ID: 269
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +49.68949396850
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Name Server: NS-1495.AWSDNS-58.ORG
   Name Server: NS-381.AWSDNS-47.COM
   Name Server: NS-616.AWSDNS-13.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T11:26:28Z <<<

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
registrar's sponsorship of the domain name registration in the registry is
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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