donautreuhand.de

Valid Email Server
Domain Lookup › donautreuhand.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
donautreuhand.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 05:33:46 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 212.227.187.244 ↩ srv001.ostermaier.net

Mail Server IPs

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

SOA Record

Raw SOA ns1.ostermaier.net info.ostermaier.net 2025102102 43200 7200 1209600 600
Primary NS (mname)
ns1.ostermaier.net
Admin Email (rname)
info@ostermaier.net
Serial
2025102102
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

ns3.ostermaier.net
ns1.ostermaier.net
ns2.ostermaier.net
ns4.ostermaier.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:62.138.185.30 ip4:92.51.173.144 ip4:92.51.173.145 ip6:2001:1520:1:200::51e include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ 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

3 records
  • apple-domain-verification=lBBr0AGzNnZxPHDn
  • SPFv=spf1 ip4:62.138.185.30 ip4:92.51.173.144 ip4:92.51.173.145 ip6:2001:1520:1:200::51e include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all
  • google-site-verification=aXgqTk5PQHa0bqCeaBO1JQnxWBf-raNBG0gnNzfYl4A
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