detlefpaulsen.de

Valid Email Server
Domain Lookup › detlefpaulsen.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
detlefpaulsen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 10:04:45 UTC · ↺ Refresh

MX Hostnames

  • mx03.hornetsecurity.com
  • mx02.hornetsecurity.com
  • mx04.hornetsecurity.com
  • mx01.hornetsecurity.com

MX Priorities

  • mx03.hornetsecurity.com: 100
  • mx02.hornetsecurity.com: 20
  • mx04.hornetsecurity.com: 200
  • mx01.hornetsecurity.com: 10

A / AAAA Records

  • 212.118.187.53 (no PTR)

Mail Server IPs

  • 94.100.134.8 ↩ mx03.hornetsecurity.com
  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com

SOA Record

Raw SOA shades15.rzone.de hostmaster.strato-rz.de 2020050837 86400 7200 604800 300
Primary NS (mname)
shades15.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050837
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades15.rzone.de
docks15.rzone.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.hornetsecurity.com ip4:81.169.146.0/24 ip4:94.100.136.58 ip4:212.118.186.10 ip4:85.208.250.82 ip4:85.215.255.0/24 ip4:80.151.160.64 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

1 record
  • SPFv=spf1 include:spf.hornetsecurity.com ip4:81.169.146.0/24 ip4:94.100.136.58 ip4:212.118.186.10 ip4:85.208.250.82 ip4:85.215.255.0/24 ip4:80.151.160.64 -all
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 detlefpaulsen.de

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

No credit card required
Get 1,000 Free Credits