Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sbbz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 05:25:55 UTC · ↺ Refresh
MX Hostnames
- h81.netzmaschine.net
MX Priorities
- h81.netzmaschine.net: 10
A / AAAA Records
- 162.55.236.136 ↩ h81.netzmaschine.net
Mail Server IPs
- 162.55.236.136 ↩ h81.netzmaschine.net
- 2a01:4f8:271:3e27::2 ↩ h81.netzmaschine.net
SOA Record
Raw SOA
ns1.domaindiscount24.net tech.key-systems.net 2025024246 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2025024246
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns2.domaindiscount24.net
ns1.domaindiscount24.net
ns3.domaindiscount24.net
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400; sp=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx ~all
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