thudu.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
thudu.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 08:15:16 UTC · ↺ Refresh

MX Hostnames

  • smtpin.rzone.de

MX Priorities

  • smtpin.rzone.de: 5

A / AAAA Records

  • 212.227.172.252 ↩ 212-227-172-252.elastic-ssl.ui-r.com
  • 2001:8d8:105:1::1:0:7 ↩ 2001-08d8-0105-0001-0000-0001-0000-0007.elastic-ssl.ui-r.com

Mail Server IPs

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

SOA Record

Raw SOA shades01.rzone.de hostmaster.strato-rz.de 2025030361 86400 7200 604800 300
Primary NS (mname)
shades01.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2025030361
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks09.rzone.de
shades01.rzone.de

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ 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
  • google-site-verification=EJAS3xAj58ML-Dtf0jF60iKQdDLs6bzZJuJ7EdPYE0Y
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