tb2k.de

Valid Email Server
Domain Lookup › tb2k.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tb2k.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 21:51:18 UTC · ↺ Refresh

MX Hostnames

  • mail.tb2k.de

MX Priorities

  • mail.tb2k.de: 10

A / AAAA Records

  • 84.19.186.58 ↩ agentur-morgenstern.de
  • 2001:1b60:2:181:3345:102::1 (no PTR)

Mail Server IPs

  • 84.19.186.58 ↩ agentur-morgenstern.de
  • 2001:1b60:2:181:3345:102::1 (no PTR)

SOA Record

Raw SOA ns.s1118408.keymachine.de nic.tb2k.de 1771425328 10800 3600 604800 10800
Primary NS (mname)
ns.s1118408.keymachine.de
Admin Email (rname)
nic@tb2k.de
Serial
1771425328
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns2.s1118408.keymachine.de
ns.s1118408.keymachine.de

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +a:s1118408.keymachine.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

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

1 record
  • SPFv=spf1 +a +mx +a:s1118408.keymachine.de -all
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