knebes.de

Valid Email Server
Domain Lookup › knebes.de

Domain Overview

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

Checked via [email protected] · 2026-03-29 14:24:36 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • mx01.hornetsecurity.com: 10
  • mx03.hornetsecurity.com: 30
  • mx04.hornetsecurity.com: 40
  • mx02.hornetsecurity.com: 20

A / AAAA Records

  • 185.33.216.13 ↩ web13.rgfi.net

Mail Server IPs

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

SOA Record

Raw SOA dns01.rgfi.net hostmaster.rgi.net 2024082201 7200 3600 604800 1800
Primary NS (mname)
dns01.rgfi.net
Admin Email (rname)
hostmaster@rgi.net
Serial
2024082201
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dns02.rgfi.net
dns01.rgfi.net
dns03.rgfi.net

SPF Record

✓ Strict (-all)
v=spf1 a mx a:web13.rgfi.net -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

✗ 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 a mx a:web13.rgfi.net -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 knebes.de

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

No credit card required
Get 1,000 Free Credits