fronteris.de

Valid Email Server
Domain Lookup › fronteris.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fronteris.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-27 07:59:58 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 85.13.133.132 ↩ dd34720.kasserver.com

Mail Server IPs

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

SOA Record

Raw SOA a.ns14.net marius\.wunner.internetx.com 2025052600 39940 14400 604800 300
Primary NS (mname)
a.ns14.net
Admin Email (rname)
marius\@wunner.internetx.com
Serial
2025052600
Refresh
39940s
Retry
14400s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

b.ns14.net
d.ns14.net
c.ns14.net
a.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.itpoint.de include:spf.nl2go.com -all
📊 DNS lookups: 4/10
✓ 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

4 records
  • SPFv=spf1 mx include:spf.protection.outlook.com include:spf.itpoint.de include:spf.nl2go.com -all
  • _globalsign-domain-verification=sRbfRxEODtaNikGaa2wiKEVmjlFZgMntySguToFP0y
  • xmpPEu1IoRMZkhwbBJDnr1XkjJQ5DVK6EtHOj7yeSZ1oE28DbOu+tOMn3gqnzNnvqFzdlXZY7IzstIiJLZ8bOg==
  • MS=ms20713731
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