feiermeier.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
feiermeier.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 17:33:30 UTC · ↺ Refresh

MX Hostnames

  • feiermeier-de.mail.protection.outlook.com

MX Priorities

  • feiermeier-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 23.227.38.65 ↩ myshopify.com
  • 2620:127:f00f:5:: (no PTR)

Mail Server IPs

  • 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.f3n.de dns-admin.f3n.de 2024102402 10800 1800 3600000 1800
Primary NS (mname)
ns1.f3n.de
Admin Email (rname)
dns-admin@f3n.de
Serial
2024102402
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
1800s

Nameservers (NS)

ns3.f3n.de
ns2.f3n.de
ns1.f3n.de

SPF Record

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

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms90246883
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