sponsors.de

Valid Email Server
Domain Lookup › sponsors.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sponsors.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 08:40:31 UTC · ↺ Refresh

MX Hostnames

  • sponsors-de.mail.protection.outlook.com

MX Priorities

  • sponsors-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 45.9.63.98 ↩ vs01.dpc-wh.de

Mail Server IPs

  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA ns5.kp-dns.de hostmaster.ns5.kp-dns.de 2023121903 3600 600 604800 3600
Primary NS (mname)
ns5.kp-dns.de
Admin Email (rname)
hostmaster@ns5.kp-dns.de
Serial
2023121903
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns7.kp-dns.de
ns5.kp-dns.de
ns6.kp-dns.de

SPF Record

✓ Strict (-all)
v=spf1 a ip4:45.9.63.98 ip4:157.97.110.61 ip4:185.48.118.163 ip4:81.173.112.17 include:servers.mcsv.net include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

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

All TXT Records

3 records
  • SPFv=spf1 a ip4:45.9.63.98 ip4:157.97.110.61 ip4:185.48.118.163 ip4:81.173.112.17 include:servers.mcsv.net include:spf.protection.outlook.com -all
  • _globalsign-domain-verification=s8yHmI4OJakPMcmc6l0x2LmuBMix4Yl03gd-KuyWW7
  • MS=ms91186863
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

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

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

No credit card required
Get 1,000 Free Credits