Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fehs.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 21:30:36 UTC · ↺ Refresh
MX Hostnames
- mailgw1.cns.gmbh
MX Priorities
- mailgw1.cns.gmbh: 1
A / AAAA Records
- 92.205.175.221 ↩ 221.175.205.92.host.secureserver.net
Mail Server IPs
- 167.235.178.108 ↩ mailgw1.cns.gmbh
SOA Record
Raw SOA
ns7.sealnet.de webservices.sealnet.de 2012042347 86400 3600 2419200 86400
Primary NS (mname)
ns7.sealnet.de
Admin Email (rname)
webservices@sealnet.de
Serial
2012042347
Refresh
86400s
Retry
3600s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
ns8.sealnet.de
ns7.sealnet.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net include:_spf.sealnet.de include:spf.nl2go.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
3 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net include:_spf.sealnet.de include:spf.nl2go.com -all
- euHWF44jlu1KP6PFy2ToMBdcRNvQ/SKeUxwH6vNfqZZywKtOxpv7jTQgmAr5tOSsSNeOz4YTCHO/UGByV+sRjw==
- MS=ms38961770
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 fehs.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits