Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gbuettner.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 15:45:24 UTC · ↺ Refresh
MX Hostnames
- mx.kirchner.network
MX Priorities
- mx.kirchner.network: 10
A / AAAA Records
- 92.51.131.99 ↩ mx.kirchner.network
- 2a01:488:66:1000:5c33:8363::1 ↩ mx.kirchner.network
Mail Server IPs
- 92.51.131.99 ↩ mx.kirchner.network
- 2a01:488:66:1000:5c33:8363::1 ↩ mx.kirchner.network
SOA Record
Raw SOA
ns1.gbuettner.de administrator.gbuettner.de 2026012947 21600 3600 1209600 3600
Primary NS (mname)
ns1.gbuettner.de
Admin Email (rname)
administrator@gbuettner.de
Serial
2026012947
Refresh
21600s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.gbuettner.de
ns1.gbuettner.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:45.83.105.186 ip4:152.89.104.50 ip4:92.51.131.99 ip6:2a03:4000:46:226::10 ip6:2a03:4000:39:c9::10 ip6:2a01:488:66:1000:5c33:8363:0:1 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=yu95qKDKy4A-d2Glf6f-ArVEj4BMQU2xZ5n9YRczMg4
- SPFv=spf1 a mx ip4:45.83.105.186 ip4:152.89.104.50 ip4:92.51.131.99 ip6:2a03:4000:46:226::10 ip6:2a03:4000:39:c9::10 ip6:2a01:488:66:1000:5c33:8363:0:1 -all
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