fritz-baur.de

Valid Email Server
Domain Lookup › fritz-baur.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fritz-baur.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 03:38:27 UTC · ↺ Refresh

MX Hostnames

  • mx03.hornetsecurity.com
  • mx04.hornetsecurity.com
  • mx01.hornetsecurity.com
  • mx02.hornetsecurity.com

MX Priorities

  • mx04.hornetsecurity.com: 40
  • mx01.hornetsecurity.com: 10
  • mx02.hornetsecurity.com: 20
  • mx03.hornetsecurity.com: 30

A / AAAA Records

  • 202.61.232.100 ↩ ae864.netcup.net
  • 2a03:4000:61:f15::17:698 (no PTR)

Mail Server IPs

  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com
  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com

SOA Record

Raw SOA root-dns.netcup.net dnsadmin.netcup.net 2023080726 28800 7200 1209600 3600
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2023080726
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

second-dns.netcup.net
third-dns.netcup.net
root-dns.netcup.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:smtproutes.com include:spf.mtaroutes.com include:spf.hornetsecurity.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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com include:smtproutes.com include:spf.mtaroutes.com include:spf.hornetsecurity.com -all
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