Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rcf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 16:25:15 UTC · ↺ Refresh
MX Hostnames
- mx2.dbtechnologies.de
- mx1.dbtechnologies.de
MX Priorities
- mx1.dbtechnologies.de: 0
- mx2.dbtechnologies.de: 1
A / AAAA Records
- 212.117.74.3 (no PTR)
Mail Server IPs
- 213.168.80.10 ↩ mx1.dbtechnologies.de
- 217.92.179.106 ↩ mx2.dbtechnologies.de
SOA Record
Raw SOA
ns1.your-server.de postmaster.your-server.de 2026020900 86400 10800 3600000 3600
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2026020900
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
oxygen.ns.hetzner.com
helium.ns.hetzner.de
hydrogen.ns.hetzner.com
SPF Record
✓ Strict (-all)
v=spf1 a mx mx:rcf.it mx:mail.rcf.it ip4:217.221.65.67/20 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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- SPFv=spf1 a mx mx:rcf.it mx:mail.rcf.it ip4:217.221.65.67/20 -all
- MS=ms22952681
Full email verification for rcf.de
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