Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sonnenberggmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 15:44:38 UTC · ↺ Refresh
MX Hostnames
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
- mx04.hornetsecurity.com
MX Priorities
- mx04.hornetsecurity.com: 40
- mx03.hornetsecurity.com: 30
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
A / AAAA Records
- 217.160.0.118 ↩ 217-160-0-118.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2ff ↩ 2001-08d8-100f-f000-0000-0000-0000-02ff.elastic-ssl.ui-r.com
Mail Server IPs
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
SOA Record
Raw SOA
ns1040.ui-dns.de hostmaster.schlund.de 2016041843 28800 7200 604800 300
Primary NS (mname)
ns1040.ui-dns.de
Admin Email (rname)
hostmaster@schlund.de
Serial
2016041843
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1040.ui-dns.biz
ns1040.ui-dns.org
ns1040.ui-dns.de
ns1040.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- v=verifydomain MS=9696762
- SPFv=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
- google-site-verification=CKRe2VkNUJkAephtp3xZEvRIi2DZ4NdvcIcbR0nODdA
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 sonnenberggmbh.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits