Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bosner.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 17:35:55 UTC · ↺ Refresh
MX Hostnames
- mail.bosner.de
MX Priorities
- mail.bosner.de: 10
A / AAAA Records
- 157.97.78.31 (no PTR)
Mail Server IPs
- 157.97.78.131 ↩ mail.bosner.de
SOA Record
Raw SOA
dns.x-ion.de m\.bosner.x-ion.de 2026060436 10800 3600 604800 3600
Primary NS (mname)
dns.x-ion.de
Admin Email (rname)
m\@bosner.x-ion.de
Serial
2026060436
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns.x-ion.de
dns.x-ion.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:157.97.78.131 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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 ip4:157.97.78.131 -all
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