mentor-giessen.de

Valid Email Server
Domain Lookup › mentor-giessen.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mentor-giessen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 18:24:05 UTC · ↺ Refresh

MX Hostnames

  • mailstore1.secureserver.net
  • smtp.secureserver.net

MX Priorities

  • smtp.secureserver.net: 0
  • mailstore1.secureserver.net: 0

A / AAAA Records

  • 185.243.134.236 ↩ r33545.agenturserver.it
  • 2a03:2a00:1800:2::ac12:1416 ↩ r33545.agenturserver.it

Mail Server IPs

  • 216.69.141.84 ↩ osplibsmtp02-v01.prod.phx3.secureserver.net
  • 216.69.141.71 ↩ osplibsmtp01-v01.prod.phx3.secureserver.net
  • 216.69.141.113 ↩ osplibsmtp03-v01.prod.phx3.secureserver.net
  • 216.69.141.162 ↩ osplibsmtp02-v02.prod.phx3.secureserver.net
  • 216.69.141.114 ↩ osplibsmtp03-v02.prod.phx3.secureserver.net
  • 216.69.141.78 ↩ osplibsmtp01-v02.prod.phx3.secureserver.net

SOA Record

Raw SOA ns49.domaincontrol.com dns.jomax.net 2025081805 28800 7200 604800 600
Primary NS (mname)
ns49.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025081805
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns50.domaincontrol.com
ns49.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ 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

3 records
  • b6aq9m1c2p1glj8ijjcutbulss
  • SPFv=spf1 include:secureserver.net -all
  • DC3910191
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 mentor-giessen.de

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

No credit card required
Get 1,000 Free Credits