Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mbau.eu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 11:32:23 UTC · ↺ Refresh
MX Hostnames
- mail2.maerz-bau.de
MX Priorities
- mail2.maerz-bau.de: 10
A / AAAA Records
- 81.169.145.80 ↩ w80.rzone.de
- 2a01:238:20a:202:1080:: ↩ w80.rzone.de
Mail Server IPs
- 24.134.176.245 ↩ mail2.maerz-bau.de
SOA Record
Raw SOA
docks09.rzone.de hostmaster.strato-rz.de 2022071559 86400 7200 604800 300
Primary NS (mname)
docks09.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2022071559
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks09.rzone.de
shades20.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:mailgun.org -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx include:mailgun.org -all
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