mtk3.de

Valid Email Server
Domain Lookup › mtk3.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mtk3.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 09:02:40 UTC · ↺ Refresh

MX Hostnames

  • smtpin.rzone.de

MX Priorities

  • smtpin.rzone.de: 5

A / AAAA Records

  • 81.169.145.157 ↩ w9d.rzone.de
  • 2a01:238:20a:202:1157:: ↩ w9d.rzone.de

Mail Server IPs

  • 81.169.145.97 ↩ smtpin.rzone.de
  • 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de

SOA Record

Raw SOA shades06.rzone.de hostmaster.strato-rz.de 2020053143 86400 7200 604800 300
Primary NS (mname)
shades06.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020053143
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks09.rzone.de
shades06.rzone.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:strato.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

2 records
  • SPFv=spf1 include:strato.com ~all
  • google-site-verification=2OceHtQ2THvwVKYb5UzFqsWUlQUaNJFinVUgFiouB58
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