metallbau-schwarz.de

Valid Email Server
Domain Lookup › metallbau-schwarz.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
metallbau-schwarz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 08:58:52 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 85.13.145.172 ↩ dd43708.kasserver.com

Mail Server IPs

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

SOA Record

Raw SOA ns5.kasserver.com hostmaster.kasserver.com 2603031131 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2603031131
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns3.ai-dns.de
ns5.kasserver.com
ns5.name-server-kas.de
ns6.kasserver.com

SPF Record

✓ Strict (-all)
v=spf1 a ip4:87.139.93.110 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=s;adkim=s;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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
  • bw=cSEAnNHZ3d7ZQZ8gH91dKfhM310pGndOmf8RSOvgulmT
  • SPFv=spf1 a ip4:87.139.93.110 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all
  • 8392aba9fe32dba37e12f1c34f98e4921c3981b67bf20488df5da5c28fe512b1
  • MS=ms28083615
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