stb-afg.de

Valid Email Server
Domain Lookup › stb-afg.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stb-afg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 01:56:26 UTC · ↺ Refresh

MX Hostnames

  • stbafg-de0i.mail.protection.outlook.com

MX Priorities

  • stbafg-de0i.mail.protection.outlook.com: 0

A / AAAA Records

  • 185.58.213.74 (no PTR)

Mail Server IPs

  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.systemdns.com hostmaster.systemdns.com 1753186441 10800 3600 300 60
Primary NS (mname)
ns1.systemdns.com
Admin Email (rname)
hostmaster@systemdns.com
Serial
1753186441
Refresh
10800s
Retry
3600s
Expire
300s
Minimum TTL
60s

Nameservers (NS)

ns3.systemdns.com
ns2.systemdns.com
ns1.systemdns.com

SPF Record

✓ Strict (-all)
v=spf1 a:securemail.rz-24.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 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

3 records
  • SPFv=spf1 a:securemail.rz-24.de include:spf.protection.outlook.com -all
  • MS=ms87331319
  • google-site-verification=-BgODgEx6nW3ztgfrcQysl_QLUEo-jw25KJ4cyt_qfM
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