Domain Overview
DNS: ✓ 19d ago
Checker: ✓ 19d ago
windhoff.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-08-20 17:49:29 UTC · ↺ Refresh
MX Hostnames
- mail1.windhoff.de
MX Priorities
- mail1.windhoff.de: 5
A / AAAA Records
- 188.245.162.133 ↩ windhoff.de
- 2a01:4f8:c17:bf5b::1 ↩ windhoff.de
Mail Server IPs
- 178.255.139.39 (no PTR)
SOA Record
Raw SOA
nsa6.schlundtech.de do-not-reply.windhoff.de 2025052003 43200 7200 1209600 86400
Primary NS (mname)
nsa6.schlundtech.de
Admin Email (rname)
do-not-reply@windhoff.de
Serial
2025052003
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsa6.schlundtech.de
nsd6.schlundtech.de
nsc6.schlundtech.de
nsb6.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 a mx a:mail.windhoff.de ip4:178.255.139.37 ip4:194.156.135.1 ip4:162.55.161.2 include:_spf.bitloft.email -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx a:mail.windhoff.de ip4:178.255.139.37 ip4:194.156.135.1 ip4:162.55.161.2 include:_spf.bitloft.email -all
- MS=ms51859850
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 · Customize →
See demo & docs
Deep verification
Full email verification for windhoff.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits