holz-tl.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
holz-tl.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 05:47:32 UTC · ↺ Refresh

MX Hostnames

  • holztl-de01b.mail.protection.outlook.com

MX Priorities

  • holztl-de01b.mail.protection.outlook.com: 10

A / AAAA Records

  • 81.169.145.161 ↩ wa1.rzone.de
  • 2a01:238:20a:202:1161:: ↩ wa1.rzone.de

Mail Server IPs

  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com

SOA Record

Raw SOA shades08.rzone.de hostmaster.strato-rz.de 2020101366 86400 7200 604800 300
Primary NS (mname)
shades08.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020101366
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades08.rzone.de
docks16.rzone.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 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

4 records
  • google-site-verification=Mt8NjzTcnhwS1ZVEMVVapmCSMgSIm8I1VY-1zkbgWno
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • 20240923005901005wip8lq2n9b1ib02ypnq6ajt4h22vyaxzs0855i723l5zjv8
  • apple-domain-verification=DhASgbBhRzDyHmUV
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