rkk.de

Valid Email Server
Domain Lookup › rkk.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rkk.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-30 17:23:00 UTC · ↺ Refresh

MX Hostnames

  • smtp.rkkin.com

MX Priorities

  • smtp.rkkin.com: 100

A / AAAA Records

  • 213.95.115.27 (no PTR)

Mail Server IPs

  • 88.84.2.229 ↩ smtp.rkkin.com
  • 213.95.115.7 ↩ smtp.rkkin.com

SOA Record

Raw SOA ns1.domaindiscount24.net tech.key-systems.net 2026013936 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2026013936
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns2.domaindiscount24.net
ns3.domaindiscount24.net
ns1.domaindiscount24.net

SPF Record

✓ Soft Fail (~all)
v=spf1 mx:rkk.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; fo=1; adkim=s; aspf=s; rf=afrf; sp=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 mx:rkk.de ~all
  • swisssign-check=tWAqkF8Didheb7DVVBxzoSHb_EU
  • DKIMv=DKIM1; k=ed25519; p=itSsj/uwhhu5RryGiMUSH66Sz4qqq3oBSGMczHbP1x4=
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