r3tec.de

Valid Email Server
Domain Lookup › r3tec.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
r3tec.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 17:37:07 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 151.252.57.40 ↩ mail.nastyle.de

Mail Server IPs

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

SOA Record

Raw SOA ns1.bstr-ns.de hostmaster.adns2.de 2025090307 39940 7200 604800 86400
Primary NS (mname)
ns1.bstr-ns.de
Admin Email (rname)
hostmaster@adns2.de
Serial
2025090307
Refresh
39940s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns2.bstr-ns.de
ns1.bstr-ns.de

SPF Record

✓ Strict (-all)
v=spf1 mx include:antispameurope.com include:spf.protection.outlook.com ip4:151.252.57.40 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

2 records
  • MS=ms25095156
  • SPFv=spf1 mx include:antispameurope.com include:spf.protection.outlook.com ip4:151.252.57.40 -all
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