Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
back-immobilien.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 15:18:48 UTC · ↺ Refresh
MX Hostnames
- francium.selfhost.de
- mailin.selfhost.de
MX Priorities
- mailin.selfhost.de: 60
- francium.selfhost.de: 1
A / AAAA Records
- 95.143.172.21 ↩ francium.selfhost.de
Mail Server IPs
- 95.143.172.45 ↩ garbageman.selfhost.de
- 95.143.172.46 ↩ garbagewoman.selfhost.de
- 95.143.172.21 ↩ francium.selfhost.de
- 2001:1a50:11::6c00:fff:fee8:cd33 ↩ francium.selfhost.de
SOA Record
Raw SOA
sec.mordac.de hostmaster.back-immobilien.de 1774364395 16384 2048 1048576 2560
Primary NS (mname)
sec.mordac.de
Admin Email (rname)
hostmaster@back-immobilien.de
Serial
1774364395
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
pri.mordac.de
sec.mordac.de
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
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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