Domain Overview
DNS: ✓ 9d ago
Checker: ✓ 9d ago
keramik-und-stein.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-18 04:41:54 UTC · ↺ Refresh
MX Hostnames
- keramik-stein.mgw.thefi.com
MX Priorities
- keramik-stein.mgw.thefi.com: 10
A / AAAA Records
- 81.169.145.86 ↩ w86.rzone.de
- 2a01:238:20a:202:1086:: ↩ w86.rzone.de
Mail Server IPs
- 195.4.186.157 ↩ gw2.mgw.thefi.com
- 195.4.186.156 ↩ gw1.mgw.thefi.com
SOA Record
Raw SOA
docks08.rzone.de hostmaster.strato-rz.de 2020072916 86400 7200 604800 300
Primary NS (mname)
docks08.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020072916
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades11.rzone.de
docks08.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:mgw.thefi.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; adkim=s; aspf=s; rf=afrf; sp=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
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 include:mgw.thefi.com include:spf.protection.outlook.com -all
- MS=ms57874952
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 keramik-und-stein.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits