Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kdv-rmk.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 08:07:38 UTC · ↺ Refresh
MX Hostnames
- mailrelay.kdv-rmk.de
MX Priorities
- mailrelay.kdv-rmk.de: 10
A / AAAA Records
- 188.245.70.51 ↩ static.51.70.245.188.clients.your-server.de
Mail Server IPs
- 80.155.164.102 ↩ mailrelay.kdv-rmk.de
SOA Record
Raw SOA
shades17.rzone.de hostmaster.strato-rz.de 2020051538 86400 7200 604800 300
Primary NS (mname)
shades17.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051538
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks16.rzone.de
shades17.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:mail.kdv-rmk.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx a:mail.kdv-rmk.de ~all
Full email verification for kdv-rmk.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits