mjr-gmbh.de

Valid Email Server
Domain Lookup › mjr-gmbh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mjr-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 19:18:55 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

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

SOA Record

Raw SOA dns.btnet.de sysadmin.btnet.de 2025102901 86400 7200 604800 3600
Primary NS (mname)
dns.btnet.de
Admin Email (rname)
sysadmin@btnet.de
Serial
2025102901
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns.btnet.de
dns3.btnet.de
dns2.btnet.de

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.rittec.de include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

2 records
  • SPFv=spf1 include:_spf.rittec.de include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
  • MS=ms46872962
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