Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fs-immo.eu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 14:15:32 UTC · ↺ Refresh
MX Hostnames
- mail.fs-immo.eu
MX Priorities
- mail.fs-immo.eu: 10
A / AAAA Records
- 178.254.0.80 ↩ sh-80.1blu.de
Mail Server IPs
- 178.254.4.101 ↩ ms-10.1blu.de
SOA Record
Raw SOA
ns01.1blu.de hostmaster.1blu.de 2025101502 43200 5400 604800 14400
Primary NS (mname)
ns01.1blu.de
Admin Email (rname)
hostmaster@1blu.de
Serial
2025101502
Refresh
43200s
Retry
5400s
Expire
604800s
Minimum TTL
14400s
Nameservers (NS)
ns02.1blu.de
ns01.1blu.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:_spf.1blu.de ~all
📊 DNS lookups: 2/10
~ 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
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 mx include:_spf.1blu.de ~all
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