udtechnik.de

Valid Email Server
Domain Lookup › udtechnik.de

Domain Overview

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

Checked via [email protected] · 2026-03-27 05:48:07 UTC · ↺ Refresh

MX Hostnames

  • relay.rzone.de
  • u633emqdk8v990xg.myfritz.net

MX Priorities

  • u633emqdk8v990xg.myfritz.net: 20
  • relay.rzone.de: 100

A / AAAA Records

  • 81.169.145.90 ↩ w8a.rzone.de
  • 2a01:238:20a:202:1090:: ↩ w8a.rzone.de

Mail Server IPs

  • 37.138.118.4 ↩ dyndsl-037-138-118-004.ewe-ip-backbone.de
  • 81.169.145.96 ↩ relay.rzone.de

SOA Record

Raw SOA shades12.rzone.de hostmaster.strato-rz.de 2020050713 86400 7200 604800 300
Primary NS (mname)
shades12.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050713
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades12.rzone.de
docks06.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

✗ 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

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

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

All TXT Records

1 record
  • brevo-code:c735a9ba10c239bf9708f74f9b3d6aa2
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