Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fritsch-fernmeldebau.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 00:02:53 UTC · ↺ Refresh
MX Hostnames
- fritschfernmeldebau-de01i.mail.protection.outlook.com
MX Priorities
- fritschfernmeldebau-de01i.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.158 ↩ w9e.rzone.de
- 2a01:238:20a:202:1158:: ↩ w9e.rzone.de
Mail Server IPs
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
shades07.rzone.de hostmaster.strato-rz.de 2020051213 86400 7200 604800 300
Primary NS (mname)
shades07.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051213
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades07.rzone.de
docks02.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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- _to2u9mmvpoicvdljyvik45ucabush7u
- SPFv=spf1 include:spf.protection.outlook.com -all
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