Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fbbgmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 00:54:05 UTC · ↺ Refresh
MX Hostnames
- email.opitec.com
MX Priorities
- email.opitec.com: 10
A / AAAA Records
- 213.214.0.28 ↩ redirect.rox.net
Mail Server IPs
- 62.225.123.195 ↩ email.opitec.com
SOA Record
Raw SOA
ns1.rox.net dns.rockenstein.de 2024102804 10800 3600 604800 3600
Primary NS (mname)
ns1.rox.net
Admin Email (rname)
dns@rockenstein.de
Serial
2024102804
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.rox.net
ns.hrb.de
ns1.rox.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.rockenstein.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
2 records- SPFv=spf1 a mx include:spf.rockenstein.de -all
- MS=ms45692153
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 fbbgmbh.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits