Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bau-su.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 13:33:47 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
MX Priorities
- mx04.hornetsecurity.com: 40
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
A / AAAA Records
- 92.205.106.110 ↩ 110.106.205.92.host.secureserver.net
Mail Server IPs
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026020911 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026020911
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:92.205.106.110 ip4:81.14.229.193 ip4:81.14.170.224/29 include:secureserver.net include:spf.protection.outlook.com include:spf.hornetsecurity.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- SPFv=spf1 a mx ip4:92.205.106.110 ip4:81.14.229.193 ip4:81.14.170.224/29 include:secureserver.net include:spf.protection.outlook.com include:spf.hornetsecurity.com ~all
- MS=ms94324900
- lp24vwxv8ph2gjc8z29hvtp3zmvm8lb3
Full email verification for bau-su.de
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