lutronic.biz

Valid Email Server
Domain Lookup › lutronic.biz

Domain Overview

DNS: ✓ 8h ago Checker: ✓ 8h ago
lutronic.biz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-02 11:25:33 UTC · ↺ Refresh

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MX Hostnames

  • mail.lumberg.com
  • mail1.lumberg.com

MX Priorities

  • mail1.lumberg.com: 10
  • mail.lumberg.com: 20

A / AAAA Records

  • 185.91.6.5 (no PTR)

Mail Server IPs

  • 185.91.4.4 ↩ mail1.lumberg.com
  • 2a03:8860:0:1::2 ↩ mail1.lumberg.com
  • 185.91.5.5 ↩ mail.lumberg.com
  • 2a03:8860:0:1::402 ↩ mail.lumberg.com

SOA Record

Raw SOA ns1.telekom-domains.de dns.telekom.de 2025051403 10800 3600 2419200 43200
Primary NS (mname)
ns1.telekom-domains.de
Admin Email (rname)
dns@telekom.de
Serial
2025051403
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
43200s

Nameservers (NS)

ns1.telekom-domains.de
ns2.telekom-domains.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com mx ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];sp=none;adkim=r;aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 736 chars (valid)
✓ DKIM properly configured for selector: mail

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • MS=ms10835059
  • SPFv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com mx ~all
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