Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
gruhn.ch
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-10 23:37:21 UTC · ↺ Refresh
MX Hostnames
- gruhn.ch
- mx01.kundenserver.de
MX Priorities
- mx01.kundenserver.de: 20
- gruhn.ch: 10
A / AAAA Records
- 82.165.36.138 ↩ s15310903.onlinehome-server.info
Mail Server IPs
- 212.227.15.188 ↩ mx01.kundenserver.de
- 82.165.36.138 ↩ s15310903.onlinehome-server.info
SOA Record
Raw SOA
ns1087.ui-dns.org hostmaster.1und1.de 2015123104 28800 7200 604800 300
Primary NS (mname)
ns1087.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2015123104
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1087.ui-dns.org
ns1087.ui-dns.com
ns1087.ui-dns.biz
ns1087.ui-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx ip6:2001:8d8:876:b82d:4db8:f53e:3998:0 include:_spf.kundenserver.de a:mout.kundenserver.de include:spf.protection.outlook.com
📊 DNS lookups: 5/10
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
1 record- SPFv=spf1 +a +mx ip6:2001:8d8:876:b82d:4db8:f53e:3998:0 include:_spf.kundenserver.de a:mout.kundenserver.de include:spf.protection.outlook.com
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 gruhn.ch
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits