davidheimburger.de

Valid Email Server
Domain Lookup › davidheimburger.de

Domain Overview

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

Checked via [email protected] · 2026-03-28 09:00:48 UTC · ↺ Refresh

MX Hostnames

  • mxext3.mailbox.org
  • mxext1.mailbox.org
  • mxext2.mailbox.org

MX Priorities

  • mxext3.mailbox.org: 20
  • mxext1.mailbox.org: 10
  • mxext2.mailbox.org: 10

A / AAAA Records

  • 188.40.218.38 ↩ www497.your-server.de
  • 2a01:4f8:d0a:6419::2 ↩ www497.your-server.de

Mail Server IPs

  • 80.241.60.216 ↩ mx3.mailbox.org
  • 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
  • 80.241.60.212 ↩ mx1.mailbox.org
  • 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org
  • 80.241.60.215 ↩ mx2.mailbox.org
  • 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org

SOA Record

Raw SOA ns1.your-server.de postmaster.your-server.de 2026011200 86400 10800 3600000 3600
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2026011200
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns1.your-server.de
ns3.second-ns.de
ns.second-ns.com

SPF Record

✓ Strict (-all)
v=spf1 include:mailbox.org -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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:mailbox.org -all
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