leonhardt.de

Valid Email Server
Domain Lookup › leonhardt.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
leonhardt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 13:22:29 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • leonhardt-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.24.205 (no PTR)
  • 172.67.220.136 (no PTR)
  • 2606:4700:3035::6815:18cd
  • 2606:4700:3033::ac43:dc88

Mail Server IPs

  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA alexandra.ns.cloudflare.com dns.cloudflare.com 2399472642 10000 2400 604800 1800
Primary NS (mname)
alexandra.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399472642
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

alexandra.ns.cloudflare.com
noah.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.crsend.com include:spf.protection.outlook.com ptr:antispameurope.com ptr:hornetsecurity.com ptr:leonhardt.de ip4:178.63.193.193/32 -all
📊 DNS lookups: 5/10
✓ 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
  • google-site-verification=bO5TXV7Djfn5z9lupBenDpQ4MemEwhxzGakZb3VBGdk
  • SPFv=spf1 include:spf.crsend.com include:spf.protection.outlook.com ptr:antispameurope.com ptr:hornetsecurity.com ptr:leonhardt.de ip4:178.63.193.193/32 -all
  • Dah2RZGc1eF14ArDs+YI4TBzdRzN86/GW7hNTXpbmOxZsifYOhVsXfXpznePdiazaC40N9IXSAMlvrsIp6jF8g==
  • MS=ms26229850
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