Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
linn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 12:56:36 UTC · ↺ Refresh
MX Hostnames
- mail.linn.de
MX Priorities
- mail.linn.de: 10
A / AAAA Records
- 85.13.133.132 ↩ dd34720.kasserver.com
Mail Server IPs
- 185.146.51.155 ↩ mail.linn.de
SOA Record
Raw SOA
ns3.werkstatt5.com root.ns3.werkstatt5.com 1718803784 10800 3600 604800 3600
Primary NS (mname)
ns3.werkstatt5.com
Admin Email (rname)
root@ns3.werkstatt5.com
Serial
1718803784
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns4.werkstatt5.com
ns3.werkstatt5.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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 ~all
- MS=7AE55D410DF7F1A4241FC6F32447380E97CFD75A
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 linn.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits