Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
groh-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:14:47 UTC · ↺ Refresh
MX Hostnames
- mx0.groh-online.de
MX Priorities
- mx0.groh-online.de: 20
A / AAAA Records
- 213.133.106.140 ↩ dedi140.your-server.de
- 2a01:4f8:d0a:25c6::2 ↩ dedi140.your-server.de
Mail Server IPs
- 24.134.178.217 ↩ mx0.groh-online.de
SOA Record
Raw SOA
ns1.your-server.de postmaster.your-server.de 2026012900 86400 10800 3600000 7200
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2026012900
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
7200s
Nameservers (NS)
ns.second-ns.com
ns1.your-server.de
ns3.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ 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
5 records- SPFv=spf1 a mx include:spf.protection.outlook.com -all
- EkYYvkKYjWG1WBm23UT4ArksqdpwJqkvx8XkFhcYpnWWJ0o2eK5x0QG7BZ66TDCdOJ1/ayLzJ/5Ye0Xk/ZwGSw==
- MS=ms87969863
- PLr8SRTciMHEVGYBtmuf32fpgZM7359cYYX4UqiIRM2eCPedymWN5v5svwdPFLiUm2qvWfyPBx5aWtuzsJ3A+w==
- SxZFiTUGyvC6l9VBayME
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 groh-online.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits