Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
wolf-bielefeld.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 08:18:16 UTC · ↺ Refresh
MX Hostnames
- smtpin.rzone.de
MX Priorities
- smtpin.rzone.de: 5
A / AAAA Records
- 34.49.73.66 ↩ 66.73.49.34.bc.googleusercontent.com
Mail Server IPs
- 81.169.145.97 ↩ smtpin.rzone.de
- 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de
SOA Record
Raw SOA
ns1.onepage.io dnsmaster.onepage.io 2024071005 10800 3600 604800 1200
Primary NS (mname)
ns1.onepage.io
Admin Email (rname)
dnsmaster@onepage.io
Serial
2024071005
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
1200s
Nameservers (NS)
ns2.onepage.io
ns1.onepage.io
SPF Record
✓ Soft Fail (~all)
v=spf1 include:smtp.strato.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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
1 record- SPFv=spf1 include:smtp.strato.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 wolf-bielefeld.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits