sinus-bfk.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sinus-bfk.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 02:24:48 UTC · ↺ Refresh

MX Hostnames

  • sinusbfk-de01c.mail.protection.outlook.com

MX Priorities

  • sinusbfk-de01c.mail.protection.outlook.com: 20

A / AAAA Records

  • 91.250.65.21 ↩ vwp10382.webpack.hosteurope.de
  • 2a01:488:42:1000:5bfa:4115:ffb3:76fe (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA docks11.rzone.de hostmaster.strato-rz.de 2020060259 86400 7200 604800 300
Primary NS (mname)
docks11.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020060259
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades16.rzone.de
docks11.rzone.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.th.je -all
📊 DNS lookups: 2/10
✓ 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

5 records
  • rfob3odbg2rm8qfpb8bsetc8d3
  • MS=ms39558027
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.th.je -all
  • cro5a9jo0q3qr19rhi078knfvt
  • sqr4amd51lomcskvjbep1qjren
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