hailfinger-electronic.de

Valid Email Server
Domain Lookup › hailfinger-electronic.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hailfinger-electronic.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 09:46:16 UTC · ↺ Refresh

MX Hostnames

  • d.mx.clustersecure.de

MX Priorities

  • d.mx.clustersecure.de: 10

A / AAAA Records

  • 212.223.26.38 ↩ linux18.unixserver.org
  • 2a02:708::167:0:0:0:2 ↩ linux18.unixserver.org

Mail Server IPs

  • 185.48.117.29 ↩ d.mx.clustersecure.de

SOA Record

Raw SOA ns.nameserver7.de dnsmaster.ns.nameserver7.de 2023042100 14400 3600 604800 86400
Primary NS (mname)
ns.nameserver7.de
Admin Email (rname)
dnsmaster@ns.nameserver7.de
Serial
2023042100
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns.nameserver7.de
ns.nameserver8.de

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.clustersecure.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 34 chars (valid)
⚠ Public key too short (34 chars) — DKIM may be invalid.

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

All TXT Records

1 record
  • SPFv=spf1 mx include:spf.clustersecure.de -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 hailfinger-electronic.de

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

No credit card required
Get 1,000 Free Credits