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 detectedNo 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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