Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fkk24.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 20:17:01 UTC · ↺ Refresh
MX Hostnames
- mx01.rto.de
MX Priorities
- mx01.rto.de: 10
A / AAAA Records
- 172.67.152.192 (no PTR)
- 104.21.56.152 (no PTR)
- 2606:4700:3035::6815:3898 (no PTR)
- 2606:4700:3032::ac43:98c0 (no PTR)
Mail Server IPs
- 185.137.28.131 ↩ mx-01-mc.rto.de
SOA Record
Raw SOA
lindsey.ns.cloudflare.com dns.cloudflare.com 2399249901 10000 2400 604800 1800
Primary NS (mname)
lindsey.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399249901
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lindsey.ns.cloudflare.com
rex.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:185.137.28.131 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=0; adkim=s; aspf=s; pct=100; rf=afrf
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
2 records- google-site-verification=GDJ6NNE8RMMkBYh9Vnp_LVA8sHD8uFxHB_6hJwdmTAQ
- SPFv=spf1 ip4:185.137.28.131 mx -all
Full email verification for fkk24.de
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