bis-telefonsysteme.de

Valid Email Server
Domain Lookup › bis-telefonsysteme.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
bis-telefonsysteme.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 20:56:22 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 167.172.178.10 ↩ bis.z7.io

Mail Server IPs

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

SOA Record

Raw SOA ns1057.ui-dns.org hostmaster.kundenserver.de 2017071049 28800 7200 604800 300
Primary NS (mname)
ns1057.ui-dns.org
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017071049
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1057.ui-dns.de
ns1057.ui-dns.org
ns1057.ui-dns.com
ns1057.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 a include:spf.hornetsecurity.com include:spf.crsend.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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

6 records
  • MS=ms27280106
  • v=verifydomain MS=8822845
  • SPFv=spf1 a include:spf.hornetsecurity.com include:spf.crsend.com -all
  • apple-domain-verification=QKYXKVAxyA7192Sn
  • amazonses:ANeRPLZGPdIZHNnKMCS8/gLYUAqV+kNxvcfu5kjpe2c=
  • google-site-verification=lED4I91jztzj3DfNcEDKuqezcQF-7px8j3Y261_s99s
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