Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nbbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 21:59:55 UTC · ↺ Refresh
MX Hostnames
- posta.root3.de
MX Priorities
- posta.root3.de: 20
A / AAAA Records
- 81.169.145.161 ↩ wa1.rzone.de
- 2a01:238:20a:202:1161:: ↩ wa1.rzone.de
Mail Server IPs
- 51.77.89.227 ↩ posta.root3.de
SOA Record
Raw SOA
docks20.rzone.de hostmaster.strato-rz.de 2020050764 86400 7200 604800 300
Primary NS (mname)
docks20.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050764
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades08.rzone.de
docks20.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx ~all
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