stb-koegler.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
stb-koegler.com
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-18 10:47:51 UTC ยท โ†บ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 5.9.106.101 โ†ฉ host.gg02.de
  • 2a01:4f8:162:4245:: โ†ฉ host.gg02.de

Mail Server IPs

  • 94.100.134.8 โ†ฉ mx03.hornetsecurity.com
  • 94.100.136.7 โ†ฉ mx04.hornetsecurity.com
  • 94.100.136.8 โ†ฉ mx02.hornetsecurity.com
  • 94.100.132.8 โ†ฉ mx01.hornetsecurity.com

SOA Record

Raw SOA nsb1.schlundtech.de soa.ganzgraph.de 2026031808 3600 1800 1209600 3600
Primary NS (mname)
nsb1.schlundtech.de
Admin Email (rname)
soa@ganzgraph.de
Serial
2026031808
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

nsd1.schlundtech.de
nsc1.schlundtech.de
nsb1.schlundtech.de
ns1.ganzgraph.de

SPF Record

โœ“ Soft Fail (~all)
v=spf1 +a +mx +ip4:5.9.106.101 +ip4:5.9.106.102 +include:spf.protection.outlook.com +include:_spf.perfora.net +include:_spf.kundenserver.de +include:spf.hornetsecurity.com ~all
๐Ÿ“Š DNS lookups: 6/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 1 found
default._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • MS=ms80180218
  • SPFv=spf1 +a +mx +ip4:5.9.106.101 +ip4:5.9.106.102 +include:spf.protection.outlook.com +include:_spf.perfora.net +include:_spf.kundenserver.de +include:spf.hornetsecurity.com ~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 stb-koegler.com

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

No credit card required
Get 1,000 Free Credits