martinsen.dk

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
martinsen.dk
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-27 08:52:52 UTC ยท โ†บ Refresh

MX Hostnames

  • martinsen-dk.mail.protection.outlook.com

MX Priorities

  • martinsen-dk.mail.protection.outlook.com: 0

A / AAAA Records

  • 35.187.46.239 โ†ฉ 239.46.187.35.bc.googleusercontent.com

Mail Server IPs

  • 52.101.73.30 โ†ฉ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.68.21 โ†ฉ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.73.2 โ†ฉ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.73.24 โ†ฉ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 โ†ฉ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 โ†ฉ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 โ†ฉ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 โ†ฉ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dlx.dk ks.dlx.dk 2025121924 14400 3600 1209600 3600
Primary NS (mname)
ns1.dlx.dk
Admin Email (rname)
ks@dlx.dk
Serial
2025121924
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns2.dlx.dk
ns1.dlx.dk

SPF Record

โœ“ Strict (-all)
v=spf1 include:20197729.spf04.hubspotemail.net include:spf.mailjet.com include:spf.smtp2go.com include:spf.protection.outlook.com ip4:185.158.62.174 include:sendgrid.net -all
๐Ÿ“Š DNS lookups: 5/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected],mailto:[email protected]

DKIM Selectors

โœ“ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

12 records
  • ZOOM_verify_EH5EKJTDS_OATzbkq0XmRw
  • apple-domain-verification=lnIdMqM_5joH3ijzX2Mf2xR1S5d44cwPc9YO2OZMxLs
  • atlassian-domain-verification=UrE5qeKmumN2YEVF7yPeW5Zm24lmyYZZcqO520ltIXwqn29NfgdkV/S0FG6sUfoT
  • apple-domain-verification=sNDLZVxqE6E7kcYKSRyjh3USmWfwP3EVXFl-VLiA82A
  • atlassian-sending-domain-verification=def8adf8-2fa8-48a2-b113-52feb73bda30
  • _globalsign-domain-verification=eUDAU-rrrt4BGVt-z2PtS9S2ejD1hUUReaZZmSpdRZ
  • duo_sso_verification=rzXSdhwbvqUo67JbVsEugDZnW5pUtgLamR9YMiH1G1MbaXrStZhka5IcSCaIB0Ci
  • google-site-verification=_zD3AGfzW7XdPAk7UQIVaJCf0O1OQHLpTS5sdnautwc
  • 0ed1fe018a435ca8364ea149a6b38ad46349a1203b
  • apple-domain-verification=XEj1iuqrSLtNVsJq
  • MS=3F39582E7915EEB0747EE347DA8D764F37D91108
  • SPFv=spf1 include:20197729.spf04.hubspotemail.net include:spf.mailjet.com include:spf.smtp2go.com include:spf.protection.outlook.com ip4:185.158.62.174 include:sendgrid.net -all
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for martinsen.dk

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits