topline-sbw.de

Valid Email Server
Domain Lookup › topline-sbw.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
topline-sbw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 17:36:37 UTC · ↺ Refresh

MX Hostnames

  • toplinesbw-de01i.mail.protection.outlook.com

MX Priorities

  • toplinesbw-de01i.mail.protection.outlook.com: 20

A / AAAA Records

  • 217.30.50.64 (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
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.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

SOA Record

Raw SOA ns1.centaur-it.net do-not-reply.topline-sbw.de 2025033103 43200 7200 1209600 86400
Primary NS (mname)
ns1.centaur-it.net
Admin Email (rname)
do-not-reply@topline-sbw.de
Serial
2025033103
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.centaur-it.net
ns3.centaur-it.net
ns2.centaur-it.net
ns4.centaur-it.net

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
  • MS=ms57282462
  • SPFv=spf1 include:spf.protection.outlook.com -all
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