coba-osnabrueck.de

Valid Email Server
Domain Lookup › coba-osnabrueck.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
coba-osnabrueck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 19:22:54 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 212.63.131.130 ↩ linux16.unixserver.org
  • 2a02:708::95:0:0:0:2 ↩ linux16.unixserver.org

Mail Server IPs

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

SOA Record

Raw SOA ns4.nameserver.de dnsmaster.ns4.nameserver.de 2025120507 86400 3600 604800 3600
Primary NS (mname)
ns4.nameserver.de
Admin Email (rname)
dnsmaster@ns4.nameserver.de
Serial
2025120507
Refresh
86400s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns4.nameserver.de
ns3.nameserver.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.hornetsecurity.com include:spf.crsend.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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=ms68945416
  • SPFv=spf1 include:spf.hornetsecurity.com include:spf.crsend.com ~all
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