Dataweaz

acoustic.com

Summary

Registrar
MarkMonitor Inc.
Status
clientDeleteProhibited
Created on
November 4, 1993
Expires on
November 3, 2028
Name servers
ns4.acoustic-adm.com, ns3.acoustic-adm.com, ns1.acoustic-adm.com, ns2.acoustic-adm.com
Mail servers
acoustic-com.mail.protection.outlook.com, mxa.mailgun.org, mxb.mailgun.org

Spoofing protection (DMARC)

Monitoring

E-mails spoofing this domain are only reported, not blocked.

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

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

Record

v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; 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 acoustic.com.

RuleValueResult
a—Allowed
mx—Allowed
ip4208.85.50.23Allowed
ip4129.41.76.62Allowed
ip4129.41.172.2Allowed
ip4129.41.172.141Allowed
ip465.207.171.66Allowed
ip465.207.171.96Allowed
ip474.121.132.20Allowed
ip4170.225.228.11Allowed
ip4129.33.243.1Allowed
ip4208.85.54.176Allowed
ip4195.212.56.5Allowed
ip4185.203.232.5Allowed
ip4129.41.77.254Allowed
ip4129.41.222.0/24Allowed
ip4208.73.4.0/22Allowed
ip4208.85.48.0/21Allowed
ip4208.95.132.0/22Allowed
ip474.112.64.0/21Allowed
ip474.121.48.0/21Allowed
ip418.157.67.60Allowed
ip452.177.238.64/26Allowed
ip4129.33.138.1Allowed
ip4208.85.51.168Allowed
ip467.231.148.85Allowed
ip4185.203.233.5Allowed
ip43.92.170.190Allowed
ip4191.237.4.149Allowed
ip4104.209.35.28Allowed
includespf.protection.outlook.comAllowed
includestspg-customer.comAllowed
includesendgrid.netAllowed
includeaspmx.pardot.comAllowed
exists%{i}._spf.mta.salesforce.comAllowed
include%{l}._spf.acoustic.comAllowed
all—Rejected

Top-level DNS lookups: 8 of 10 allowed

Record

v=spf1 a mx ip4:208.85.50.23 ip4:129.41.76.62 ip4:129.41.172.2 ip4:129.41.172.141 ip4:65.207.171.66 ip4:65.207.171.96 ip4:74.121.132.20 ip4:170.225.228.11 ip4:129.33.243.1 ip4:208.85.54.176 ip4:195.212.56.5 ip4:185.203.232.5 ip4:129.41.77.254 ip4:129.41.222.0/24 ip4:208.73.4.0/22 ip4:208.85.48.0/21 ip4:208.95.132.0/22 ip4:74.112.64.0/21 ip4:74.121.48.0/21 ip4:18.157.67.60 ip4:52.177.238.64/26 ip4:129.33.138.1 ip4:208.85.51.168 ip4:67.231.148.85 ip4:185.203.233.5 ip4:3.92.170.190 ip4:191.237.4.149 ip4:104.209.35.28 include:spf.protection.outlook.com include:stspg-customer.com include:sendgrid.net include:aspmx.pardot.com exists:%{i}._spf.mta.salesforce.com include:%{l}._spf.acoustic.com -all

E-mail signing (DKIM)

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

SelectorLikely serviceKeyStatus
selector1Microsoft 365RSA 2048 bitsActive
s1SendGridRSA 2048 bitsActive
s2SendGridRSA 2048 bitsActive
zendesk1ZendeskRSA 2048 bitsActive
zendesk2ZendeskRSA 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 acoustic.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from acoustic.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 @acoustic.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

acoustic.com  MX  10 mx1.acoustic.com.
acoustic.com  MX  20 mx2.acoustic.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.acoustic.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

acoustic.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.acoustic.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.acoustic.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.acoustic.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.acoustic.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 acoustic.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
A216.150.1.1

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
ns4.acoustic-adm.com205.251.192.237
ns3.acoustic-adm.com205.251.194.123
ns1.acoustic-adm.com205.251.197.17
ns2.acoustic-adm.com205.251.198.78

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @acoustic.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
0acoustic-com.mail.protection.outlook.com52.101.41.58
10mxa.mailgun.org34.149.254.5
10mxb.mailgun.org34.36.182.139

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.acoustic.com.

NameContent
acoustic.comyahoo-verification-key=8ax9PcRN8jW5hVgV01EY+08VgSUPZp9dfZSUJe5Er+w=
acoustic.comgoogle-site-verification=BlFQDWkVKUchWZDc77T0bUu6JIgvFKfnznPoOLWm_AQ
acoustic.compardot959062=463acd957effbb3e73f8ceed6579dc86c80c076065ba6911542cdb565e5a10fb
acoustic.comstatus-page-domain-verification=hbk7lqd20gmq
acoustic.comgoogle-site-verification=aSM87wwPmO2tXCzEHUN9PRj672bA_vltVvvaEhft3vw
acoustic.comgoogle-site-verification=1mMXXGEIzlK5WAKi0no7Vp5w1nFtNXusS7ARGtRpyMM
acoustic.comb2366de3e32641db900b7ec9d0c9a8f5
acoustic.com00D3i000000GguW=1TBa60000000FOr
acoustic.comamazonses:rDA75FJUBWtlk+NUDtU0Y1Isd38WweMjdgMLjVg41FM=
acoustic.comatlassian-domain-verification=Q/27mPfyvImM5p5RVRx/XmbYJsqMP8yZCyBTU04vrX31FeYIUcAOFMUETZavc/DC
acoustic.comamazonses:jLWmTKpYp+nhUNU+QkC6gjZTcvi+bQQoK0Jr3ogR+WA=
acoustic.come2469b810d5444ec8c97bf046c72c6c5
acoustic.comMS=ms17602508
acoustic.comgoogle-site-verification=f-YYWOUbyPEPuTXGUZSCGWrYayFxYnd8c1yigVxcZ7s
acoustic.comv=spf1 a mx ip4:208.85.50.23 ip4:129.41.76.62 ip4:129.41.172.2 ip4:129.41.172.141 ip4:65.207.171.66 ip4:65.207.171.96 ip4:74.121.132.20 ip4:170.225.228.11 ip4:129.33.243.1 ip4:208.85.54.176 ip4:195.212.56.5 ip4:185.203.232.5 ip4:129.41.77.254 ip4:129.41.222.0/24 ip4:208.73.4.0/22 ip4:208.85.48.0/21 ip4:208.95.132.0/22 ip4:74.112.64.0/21 ip4:74.121.48.0/21 ip4:18.157.67.60 ip4:52.177.238.64/26 ip4:129.33.138.1 ip4:208.85.51.168 ip4:67.231.148.85 ip4:185.203.233.5 ip4:3.92.170.190 ip4:191.237.4.149 ip4:104.209.35.28 include:spf.protection.outlook.com include:stspg-customer.com include:sendgrid.net include:aspmx.pardot.com exists:%{i}._spf.mta.salesforce.com include:%{l}._spf.acoustic.com -all
_dmarc.acoustic.comv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; pct=100
selector1._domainkey.acoustic.comv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3O++7D3+9I/rfadCvjt4Vp6+TBGaFNpB7Z76USaRgj7j8p3wRh2+u0PzfUzuuTqYCFWLLpKSsyRoA3tz0lJe81gxGL0sOYoF7q5pYXeTdGe08dZjmseLhD+Heivc9xNXBKo/T/gOnBk9a/ClzNM8ULBaDLNnPmIp9NCTWqcfRYMBczc9LTZuZxFpJU86HX+11Q35KAbV95PTRACtvuI+9Bl/avibepuPM08cUmoaLblBZ+1GPadbCVApEfcGiDDXptx6Vp9Z2rs3UmhQ+TzbtjxmjlUTVxzU2R+d2X3izRHEevtm+ywgnT7GIppRYbinOTSqomt4Th77j+8PsUXsKQIDAQAB;
s1._domainkey.acoustic.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx4RnFADzVuwxhPZNRybKAeUZFjyajDmjEpQspDM2oeTXDy3dD6y1pW9MoWHeFT1wXUpaaSB50dl+IASMY3e1x7m9ltpog/oFPYewec6zMeklqXYU3+nqojzeEotIdW0UmQ0XjfS/fl6xvLXou9TsdjHB2ztIV2niS7/WtvwpQGndvvHAvgv/8n2HFXIu7mD1Ph8ovgP7xQfeLzwvjeHwKjwVCzXzuGF7LJu1rNNIybhOLt/BLOXNBIC8+dZWLKjEQJhs+HmRlsTo6CZzcNGNdGctNC/RzcCgQVvGaCUlS8ZJwl57nVA5hjLuuNSP4nCKdxIcfl6YlaRXgoCp7/swawIDAQAB
s2._domainkey.acoustic.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0bq8aubb3CpuPmq9vjHmJW50VOys4D3j49NkN66XNJlyH376XsWPilGlQh1ZbOzMeI1g7icvBMKzKh5xT+/O4m3g1DBLaMB/NyZEUWA35n2FsJL++1EhkmVobaN2evVOoa2/Nala9Bx0oVMMqZ+RJT4nY+/k4X/SNgp52bv9M7qC8evRL0hor3GpuYKJEiRNGx80LA1aHQbMXWlOd7lRuXRVeDxwj3bOjxFnTJVcSt8Gx8sOg25uY/Es+rL/5tNqdHJum3oFG3DgJynK4l8qGzSzkiCH9VghzSVfupFPsCLZzs2SPnGemE30RRgOeX5N/fu+xINL4p/QMzWXEyNl6QIDAQAB
zendesk1._domainkey.acoustic.comv=DKIM1;t=s;n=core;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9IqdLrO3Zr2/56MHt8oQVCQorP0Bl2Fz9sM2tFBnJCdB/HogQmuudEg2xAovCN2PYpw44UijIvPuBoT9vxiv6ZCBJTLJXa82r6ke5rE4tbe9NKFIrVIb9S306cJDrnKFMDb8p0dU/Su0+eUR5gVAOtCuz2L8HAzs5edvsEvD/Fb4ny1RLNSEPZkIQLfGhVxQeWANm3+1Jwb/OBVXV9k0nKpWrpgqcmO7NzroJirp014RQY7rGi60JLUubc6XhvoFQBQrtOAdVlZC5wvfS1bgpq5kQpdP7cajIqWCeqxPTeo0ZUpey2ZcaygEsZz0Z3Gs5wDzyuqd7/ADpr2jNF7ozwIDAQAB
zendesk2._domainkey.acoustic.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 acoustic.com: website, name servers, mail servers and senders authorized by SPF.

IP addressUsed for/24 block
216.150.1.1Website216.150.1.0/24
205.251.192.237Name server ns4.acoustic-adm.com205.251.192.0/24
205.251.194.123Name server ns3.acoustic-adm.com205.251.194.0/24
205.251.197.17Name server ns1.acoustic-adm.com205.251.197.0/24
205.251.198.78Name server ns2.acoustic-adm.com205.251.198.0/24
52.101.41.58Mail server acoustic-com.mail.protection.outlook.com52.101.41.0/24
34.149.254.5Mail server mxa.mailgun.org34.149.254.0/24
34.36.182.139Mail server mxb.mailgun.org34.36.182.0/24
208.85.50.23Authorized by SPF208.85.50.0/24
129.41.76.62Authorized by SPF129.41.76.0/24
129.41.172.2Authorized by SPF129.41.172.0/24
129.41.172.141Authorized by SPF129.41.172.0/24
65.207.171.66Authorized by SPF65.207.171.0/24
65.207.171.96Authorized by SPF65.207.171.0/24
74.121.132.20Authorized by SPF74.121.132.0/24
170.225.228.11Authorized by SPF170.225.228.0/24
129.33.243.1Authorized by SPF129.33.243.0/24
208.85.54.176Authorized by SPF208.85.54.0/24
195.212.56.5Authorized by SPF195.212.56.0/24
185.203.232.5Authorized by SPF185.203.232.0/24
129.41.77.254Authorized by SPF129.41.77.0/24
18.157.67.60Authorized by SPF18.157.67.0/24
129.33.138.1Authorized by SPF129.33.138.0/24
208.85.51.168Authorized by SPF208.85.51.0/24
67.231.148.85Authorized by SPF67.231.148.0/24
185.203.233.5Authorized by SPF185.203.233.0/24
3.92.170.190Authorized by SPF3.92.170.0/24
191.237.4.149Authorized by SPF191.237.4.0/24
104.209.35.28Authorized by SPF104.209.35.0/24

WHOIS of the domain acoustic.com

Domain Name: ACOUSTIC.COM
   Registry Domain ID: 2918360_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.markmonitor.com
   Registrar URL: http://www.markmonitor.com
   Updated Date: 2021-03-15T06:27:27Z
   Creation Date: 1993-11-04T05:00:00Z
   Registry Expiry Date: 2028-11-03T04:00:00Z
   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: NS1.ACOUSTIC-ADM.COM
   Name Server: NS2.ACOUSTIC-ADM.COM
   Name Server: NS3.ACOUSTIC-ADM.COM
   Name Server: NS4.ACOUSTIC-ADM.COM
   DNSSEC: signedDelegation
   DNSSEC DS Data: 58117 13 2 8E128EB44E89A3F15E30116208AF4FA98B1790D038CF01C9ACFF6D877224FCC8
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T11:05:58Z <<<

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
view the registrar's reported date of expiration for this registration.

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