Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rkk-koblenz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 22:31:16 UTC · ↺ Refresh
MX Hostnames
- mail.fusoft.de
MX Priorities
- mail.fusoft.de: 5
A / AAAA Records
- 46.4.177.148 ↩ chewbacca.naboo.fusoft.de
- 2a01:4f8:172:27ca::1000:15 ↩ chewbacca.naboo.fusoft.de
Mail Server IPs
- 46.4.177.146 ↩ mail.fusoft.de
SOA Record
Raw SOA
ns1-09.azure-dns.com msnhst.microsoft.com 0 3600 300 2419200 300
Primary NS (mname)
ns1-09.azure-dns.com
Admin Email (rname)
msnhst@microsoft.com
Serial
0
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-09.azure-dns.info
ns1-09.azure-dns.com
ns2-09.azure-dns.net
ns3-09.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 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 mx -all
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